Honda Dio Scooter Won’t Start

Why the scooter won’t start from the button. identifying the reasons

The scooter is a practical vehicle, economical and easy to operate. Modern models are reliable and unpretentious in maintenance, however, during the operation of the scooter, problems of a different nature may arise.

As a rule, at first the scooter starts up from the button every other time, and then it does not start at all with the help of an electric starter. How to be in this case?

To fix the problem, you need to identify the cause of its occurrence. As practice shows, there can be many such reasons, but there are also quite common ones.

honda, scooter, start

What to check if the scooter does not start from the button

Let’s list the most common reasons and give ways to solve them:

  • Fuel gauge defective. No matter how trite it may sound, this happens quite often: the sensor shows that there is still gas in the tank, and the scooter owner is looking for the reasons for the “breakdown” in a completely different place. Therefore, it will not be superfluous to first look into the gas tank and make sure that there is fuel in it.
  • The battery is flat. This often happens with prolonged downtime. To solve the problem, just charge the battery.
  • Old fuel. Many scooter owners face this problem after winter. There seems to be gas in the tank, the electric starter seems to be turning, but something is missing to start the engine itself. Old gasoline may be the cause of this problem, try draining it and refilling with fresh fuel.
  • There is no spark in the spark plug. To check this version, you need to unscrew the spark plug, attach it to the unpainted part of the engine (for example, to the cylinder), and turn the crankshaft using the kickstarter. In this case, you should not neglect the precautions: you cannot hold the candle with your bare hands. If there is no spark, the candle must be cleaned of moisture and carbon deposits, cleaned with zero sandpaper and dried. Ideally, the spark should be white.
  • Poor contact at the battery terminals. over time, they can become covered with oxide, which is a dielectric. To get rid of this problem, it is enough to clean the contacts with the same fine sandpaper.
  • Clogged fuel cock and / or fuel line. If no gasoline is supplied to the ignition system or is supplied intermittently, the scooter will not start either from the kickstarter or from the button. To fix the problem, these elements of the fuel system must be cleaned.
  • The carburetor is clogged. Difficulty starting the engine, “floating” speed, dips in the engine. all this indicates that the carburetor needs cleaning. To remove the carburetor, you need to unscrew the intake pipe and the air filter pipe, disconnect the terminals of the starting enrichment, remove the gasoline supply pipe and drain. Then you need to disconnect the throttle cable and you can remove the carburetor. Next, you should carefully disassemble the power system assembly, clean and reassemble. After cleaning the carburetor, remember to adjust the floats to a horizontal position!
  • No compression. Examine the piston group. When the piston moves to top dead center, pressure should appear in the cylinder. You can check this using a special device. a compressometer. To do this, in place of the candle, we wrap the compression gauge fitting and turn the crankshaft with a kickstarter. On 2-stroke scooters, the compression should be 7-8 kg / cm2, on 4-stroke scooters. 9-10.

If the scooter starts from the kickstarter, but does not start from the button

If the scooter starts up from the “leg” without problems, but does not want to use the electric starter button, then you should pay attention to the central fuse (it is located in the compartment with the battery). If the voltage in the electric network of the scooter is underestimated due to a faulty fuse, it will not start from the “Start” button.

If during measurements losses are identified, the fuse should be replaced. In most cases, after replacing a faulty fuse, the scooter starts to start without problems from the “Start” button.

The problem when the starter button on the scooter does not work may not only be in the fuse. It is likely that the integrity of the connecting wires in the engine starting circuit is broken.

VIDEO INSTRUCTIONS It will be difficult for a beginner to deal with such a malfunction, therefore, for a complete diagnosis of the electrical circuit, it is better to contact an auto electrician.

Scooters Maintenance and repair. The scooter won’t start on cold. the main reasons

You can often find a situation when a heated scooter engine works normally, but problems arise on a cold one, it becomes extremely difficult to start it, and in some cases, impossible. At the same time, you will not be able to start the scooter with either an electric starter or a kickstarter.

In this case, usually the problem lies in the ignition system or in the power system. Both breakdowns require serious attention and adherence to clear instructions, which I will describe below.

Since most often the problem lies in the ignition system, we will consider this item in more detail. After that, let’s move on to the power system.

The scooter will not start on cold due to problems in the ignition system

First, we unscrew the candle and consider the electrodes, if they are melted or have any defects, we replace the candle with a new one.

If the candle is wet, be sure to remove it from the cap and dry it, for example, I do it on a gas stove. Now put it back into the cap and check for a spark.

How to check for a spark on a scooter, the scooter will not start on a cold due to problems with candles

To do this, you need to attach a spark plug to an unpainted part of the engine, usually to the cylinder, and turn the crankshaft with an electric starter or kick. Before doing this, do not forget to turn on the ignition of the scooter. You should not check the spark with your bare hands, you should definitely protect yourself with special thick rubber gloves or a piece of rubber.

Another point to consider is that the candle must be kept away from the spark plug hole in the cylinder head, as gasoline can splash from there and ignite. In my practice, this has not happened, but recommendations should not be neglected.

With a sharp scrolling of the crankshaft, a blue spark should run through the candle, sufficiently powerful and constant. If there is no spark, or it is yellow and appears occasionally, first of all, we take it for a faulty one and check the spark in the same way on a new candle. As a rule, in more than half of the cases, at this stage the problem is solved and the scooter works properly. That is why it is so important to always have a working spare candle with you, which will always save you on the road in such a situation.

If, after you installed a new plug, the problem remains, we are looking for a deliberately faulty place further:

The scooter does not start on a cold one due to a faulty spark plug cap or connection to it.

It also happens that the cap may not be tight enough to contact the high-voltage wire. To exclude this from a possible cause of a malfunction, we must check it. We unscrew the cap from the wire and bring the wire 2-3 mm to the metal part of the engine. Please note that if, in the case of a candle, we pressed it against the engine, then in this case it is imperative to observe the specified distance.

Turn the crankshaft and pay attention to the end of the wire, a spark should slip between it and the engine (do not forget that we do all this with the ignition on). If a spark appears, you can breathe a sigh of relief. We consider the candle cap, if it is wet (and often because of this a normal spark disappears), then dry it with a hairdryer, put the candle in place and check the spark. No changes? Then we change the cap for a new one and go.

Now we will consider an option in which there is no spark even on the wire and the scooter will not start cold.

This phenomenon can happen with the so-called leakage current. The essence of this phenomenon lies in the fact that any bare section of the high-voltage wire touches the metal part of the scooter. It may not be directly, and the role of a conductor can be played by water that accumulates in the area of ​​a bare area when driving through puddles.

Consider carefully the wire going from the spark plug to the ignition coil, if you did not find any disconnection and damage points, then we can assume more serious breakdowns in the ignition system, namely:

  • the ignition coil is out of order;
  • the ignition sensor (hall sensor) is out of order;
  • the switch is faulty;

The scooter or moped does not start on cold due to problems in the power system

You should pay attention to this point first of all if you have a spark on the scooter and there are no problems in the ignition system.

Difficulty starting the engine, if considered only within the framework of the power supply system, will arise either from a lack of fuel or from its excess.

Older mopeds, such as Karpaty and others, have a fuel cock just below the tank. Disconnect the hose from the carburetor and open the tap, if gasoline starts to flow from the hose, skip this point and pay all attention to the carburetor. If gasoline does not flow, although it is available in the tank, then the problem is either in the tap itself or in the highway, we disassemble and look.

On modern scooters and mopeds, an automatic fuel valve is installed, which works by discharging. A striking example of such scooters is Yamaha and Suzuki equipment, as well as Chinese scooters similar to them. Here the gas tank is installed above the carburetor, and a small membrane-based device acts as a crane. sometimes this particular membrane can fail due to contamination and other factors. This type of fuel valve is not repaired, and in case of failure, it must be replaced.

On Honda scooters, the gas tank is generally located below the carburetor and is supplied with fuel through the fuel pump. In this case, of course, the aforementioned fuel taps are missing, as they are simply not needed. It is very simple to check the operation of the gas pump, disconnect the gas supply hose to the carburetor and pump the crankshaft with a kick or electric starter, the gas pump should produce fuel and gasoline will start pouring out of the hose.

Since we are considering problems with starting the engine of a scooter and moped “cold”, and the starting enricher is responsible for this start, you should definitely check it too. Briefly describing the work of the concentrator, the point is that a cold engine requires more fuel to start and run smoothly. It is this function that the starting enrichment performs. A special needle opens an additional channel and a little more fuel than usual enters the carburetor. Initially, the needle is in the retracted position. Inside the starting enrichment there is a heat element, which, when heated, pushes the needle and closes the channel.

If the starting enricher is faulty, then the carburetor does not get enough fuel to start normally, and of course problems with starting arise. To check the enricher, remove it and connect it to a voltage of 12V, after some time the needle should smoothly leave the body for a few millimeters, if this does not happen, it is faulty.

If all channels are clean and there are no problems in the fuel cock, as well as in the fuel pump and enrichment, we proceed to disassemble the carburetor and thoroughly flush it. How to do this has already been described in previous articles.

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It should be noted that difficulties with starting a cold engine, when the scooter does not start on a cold one, also arise when the piston engine is worn out, so it will not be superfluous in this case to check the compression, especially if your scooter or moped has traveled more than one thousand kilometers.

If you have any difficulties with starting the engine, and all the above remedial measures did not help you, ask a question in the comments field, we will try to solve the problem together. Good luck with the repair.

You can also check out other articles on the topic:

Scooters Maintenance and repair. The main malfunctions of the scooter, test methods, symptoms, causes.

The malfunctions of the scooter must be repaired in time. Any breakdown, even a minor one, tends to turn into serious malfunctions over time with corresponding consequences.

To make it easier to navigate the most popular scooter faults, today’s article provides diagrams in the most convenient form. Each diagram summarizes the check, symptoms and causes of certain scooter malfunctions by category.

The schematic approach is easier to remember, easier to digest, and quickly identifies a problem.

So let’s start with the most popular point:

The scooter engine won’t start.

We considered this problem in a separate article, now let’s just remember all the points on the diagram.

Further, it often happens that you started the engine, but it immediately stalled or stalled after two meters of movement. Let’s consider this situation in more detail.

The scooter engine stalls after starting.

There are usually many reasons for this, you need to carry out some checks and analyze the situation.

Nothing complicated, everything is described in detail in the diagram.

The scooter engine does not work well at idle.

Now consider the following situation. You started the engine, even immediately, without problems, but it does not work well at idle or is completely inadequate at low:

According to the diagram, you can determine the malfunction and start repair.

The scooter engine does not work well at high speeds.

There are a number of faults that do not allow the engine to spin normally and feel confident at high revs. The main one is a lack of fuel due to problems in the carburetor, but there are others, see the diagram:

Now consider a situation where the scooter’s engine lacks power. This is one of the most popular problems for owners of fifty dollars and cubic capacity too. Lack of power can appear immediately or after some run, on a cold or after warming up.

The scooter lacks power.

In some cases, this is a natural process that we perceive as a breakdown, but usually there are explanations for this.

And finally, let’s look at some of the problems with the variator and clutch. The topic of transmission is very relevant and requires a whole section, here we will consider only the most popular malfunctions in a nutshell.

Scooter transmission problems.

The operation of the variator and clutch is a rather complicated process, but sometimes such minor breakdowns do not allow the scooter to drive even a meter.

If you could not determine the breakdown of your scooter according to the diagrams or you still have questions, ask them in the comments field on the website or on the forum of our website. Good luck on the road!

You can also check out other articles on the topic:

220 comments on “Basic scooter malfunctions, test methods, symptoms, causes.”

Guys, respect to you. Everything you need for diagnostics is in these tables. Considering the Chinese “quality”, taken with you on the road, these reminders will always help!

Hello. I’m with this question. I have a 50cc Chinese scooter. RANGER GTXM50C has been running 5000 km for 2 years. It smokes a lot when starting and warming up. It does not smoke as it warms up. But it uses oil well. Oil MOTUL. 4t. The compression is good. I was advised to change the oil seals or valve stem seals. Tell me how to do it!

Hello! My sepia scooter won’t start! I checked everything according to this scheme, it didn’t work! The fuel is not supplied to the carburetor. I washed the carburetor, changed the tubes, checked the petal valve (it sulks away from myself, not in itself! Checked with my mouth) I checked the crankshaft oil seals. dry and clean! I checked the vacuum gas valve (again with my mouth). it works! I fill in 2 cubic meters. gasoline in the piston. is started !! I also changed the carburetor to 100% working. the result is the same.

replied: 14 May 2014 at 11:12 am

Look at the fuel supply valve (the one under the gas tank)

The variator cover is heated, squeezes oil and stench from the silent blocks.

Administrator replied: February 24, 2013 at 03:00

The silent blocks need to be replaced. The lid will keep warm, that’s ok.

sergey replied: 23 February 2014 at 15:42

good afternoon, there is someone on the site to communicate

vladimir replied: May 25, 2016 at 17:40

hello problem with the variator

Vitya replied: 18 November 2019 at 12:38

Hello, how many salentblocks on Suzuki ZZ Inch Up Sport?

danila replied: 12 April 2014 at 18:29

and how to fix it? write pliz.

in 2009 I bought a honda zx 35, changed the piston three times and changed the rear tires once, all))) think about whether it is worth saving on Chinese scooters?

I recently bought a dio 35, I have never encountered scooters before. It starts to get under way at half the turns of the handle. Tell me this is normal?

Admin replied: April 11, 2013 at 10:07 am

Vlal replied: April 30, 2017 at 19:10

Reply The scooter starts off at 4000 rpm The clutch pads are in a normal state only there are streaks of rust around them

Please tell me what is the reason after changing the belt the scooter does not start.

Arslan replied: May 20, 2013 at 14:55

a similar problem, it starts without a belt, the engine works normally. but with a new belt, it cannot turn the belt, the battery was charging. I took different belts, even thinner by 0.2mm, it still did not help

Hello. Recently bought a cheap Honda Giorno. Starts with a half turn, both from the button and from the foot. I start to drive, it will drive 200 meters, then I twist the handle, and the speed drops, it practically stalls. If it stands still, turn the handle once and the idle is very smooth, only there is some iron sound. I start driving. the same thing. The revs float wildly, but the scooter does not go. I barely reached the garage, constantly closing, opening the gas handle. What could it be?

Nikita replied: July 29, 2013 at 16:23

The carburetor may be clogged

Sergey replied: March 11, 2015 at 17:01

check the valve clearance, when heated, the compression expands and disappears, I had it adjusted and everything is OK.

Hello, tell me, if you can, what could be the reason: the Storm-L scooter, when the key is turned in the lock, there is zero reaction, the gas tank arrow is at zero, the startel is silent, respectively, no turn signals, no stopak. no signaling does not work. The battery is normal, the wiring externally too. From the kickstarter it starts without problems, but only the headlight and dimensions work on it, the turn signals and the signal with the stop are silent.

Andrey replied: June 4, 2013 at 11:02 am

Fuse near the Akamulator alive?

Anatoly replied: June 4, 2013 at 17:42

Checked first. Everything alive. In the terminal box under the steering wheel. leaving the starter, one of the contacts disconnected. Outwardly it was imperceptible until I found it by typing.

Hello, tell me how to adjust the motor chain on a 150cc Chinese SPEED RACING scooter makes a lot of noise when the engine is running.

Hello, the problem is this, the front variator is warming up so that the impeller has already melted (replaced the variator), but the problem remains, two belts have flown, can there be a reason in the weakened spring of the rear variator? scooter Fada 50 4-stroke thanks in advance

Andrey replied: June 4, 2013 at 19:36

Replaced both variators and belt all buzzing

Having bought a SPARK SP110C-3 scooter with an automatic transmission box, if I do not open it, I cannot switch from 4 to neutral, if the scooter is standing still, which may be the reason and how to correct?

Hello, I can not start a 139qmb scooter running 1200 km. The scooter starts very badly or does not start at all when cold. Gasoline enters the carburetor, there is a spark, compression is normal, the starting enricher is working. All filters are changed. What’s the matter? Could it be the unregulated valves? And in general, is it worth regulating them ?

Andrey replied: June 4, 2013 at 11:00

If the cylinder head was removed, then most likely the ignition, and if not, then the valve is worth looking at (set the current by the marks and the probe)

Tell me who is the thread. at idle and medium speed, the norms are working, the current accelerates about 40-50 starts to twitch, slightly closing the air intake stops twitching but not already frisky (the carb is new, the piston head is climbing the vacuum valve, the candle, the air filter has changed everything) the valves are marked on the labels and the dipstick is exposed, what is the reason, I do not understand, before the repair, the problem was good people help. yes more candle red dry scooter Fada 50 four taktknik

San-sanych replied: Mar 4, 2018 at 12:57 pm

Not enough fuel at high rpm. If after cleaning and blowing it does not help, you can try with a larger diameter jet.

Greetings! Honda Dio-27 changed the coil and the crankshaft bearing… Now it starts cold, but turns the belt in the opposite direction, gets very hot and stalls after 10 minutes…. It seems that 1 time out of 10 I twirled in the right direction and the scooter went.

gennady replied: 14 September 2018 at 07:29

if I changed the generator coil and turns in the opposite direction, there may be a hall sensor with the wrong polarity, I had this changed the generator coil started up from the floor but only in the opposite direction twisted put the hall sensor from the old coil and everything will be ok

When the engine is cold, there are idle ones, but when the engine heats up, they disappear.

Andrey replied: June 5, 2013 at 21:07

The enricher works on the cold, and when the engine warms up, it turns off, so adjust the idle speed on the carb with the screw.

Please tell me Suzuki address 100, piston intact, rings too, does not start from a button, not from a kickstarter, what could be the reason?

San-sanych replied: March 4, 2018 at 12:48 pm

Good afternoon, I have a Motolife and it doesn’t work, I have already checked everything and tried it, but I still don’t want to start, please, please, what is the problem!

San-sanych replied: March 4, 2018 at 12:48 pm

I bought a Chinese scooter when it starts up, it won’t work a lot, then throws off the needle, tell me what could be ?

San-sanych replied: 4 March 2018 at 12:50 pm

good afternoon everyone bought a yamaha moped sum 125 cube rode the thrust disappeared and stalled and did not start more, disassembled the rings from the pistons normally he is trying to grab but something is missing help

Michael replied: June 4, 2014 at 22:45

klapona mood and gaps will fly in the Internet, look

on a Chinese scooter, 50 cubic meters at 7000 rpm start to float drops to 6000 and the speed of 30-40 km does not accelerate any more. 400 km mileage before that everything was normal. The carburetor and air was cleaning no effect.

San-sanych replied: 4 March 2018 at 12:51 pm

I have a Honda Lead 90 at idle works well when I sit on it, I don’t give gas immediately stalls, I give gas, it does not accelerate more than 30, sneezes. no traction on the tubercle does not drive in stalls. I thought the piston changed completely, it did not give a spark to prevent it from starting, I put it correctly. I took off the air and put a zero instead of it. can someone tell me what’s the matter. thanks in advance!)

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Raf replied: July 1, 2013 at 20:00

look at the rollers. the load of the variator, they were brought up and jammed. You take off the cover and start on the footboard: the diameter of the pulleys does not change during re-gasing, most likely the rollers are jammed and the engine simply cannot gain momentum

Yuri replied: May 29, 2019 at 11:34 pm

Good afternoon. And on the contrary, maybe? I mean that the turnover is huge. looking for a scooter and the revolutions are going through the roof. Tries to get off the footboard. Does not react to the throttle stick. What could be?

Guys, everyone is healthy! please tell me what could be the reason with the 150 cc Irbis Nirvana scooter, it STARTS GOOD. WORKS STABLE, AT ACCELERATION TO 50 KM, STARTS TO SHAKE, AND LOSE SPEED?

vibration during acceleration in transmission

San-sanych replied: 4 March 2018 at 12:52

Rollers of different weights. 2. Curved crankshaft. 3. The variator is unscrewed.

Hello, I have such a problem on a moped, the starter does not turn well, I thought the relay is buggy, but no, I changed it, (the battery is fully charged, but it feels like it’s discharged) before that I poured oil with a viscosity of 10W40 on an unheated engine, it is possible whether the problem is due to oil, or something else, thanks in advance (Patron Trafic 50 moped)

San-sanych replied: 4 March 2018 at 12:53

The battery capacity may have dropped. Check battery voltage reading while cranking.

Help and tell me, please !: My son has a Honda dio af 56 scooter that won’t start. idle does not hold, even if it starts in half a day. We looked at the carburetor. they say it needs to be changed, but it is very difficult to find it, practically impossible. advise from Chinese 139 4-bar. deliver, but how to do it and does it make sense? Please advise something. summer is passing. it’s a pity for the boy, and the scooter is not to be thrown away. Thank you all in advance!

San-sanych replied: 4 March 2018 at 12:54

The scooter is relatively new. What exactly is wrong with the carburetor? I don’t think he needs to be changed.

Hello! I have such a problem, on a scooter 150, the flywheel of the air from the carburetor got off, I noticed this even then when the carburetor clogged, I cleaned the carburetor and air and put everything together as it should be. but did not attach any importance to this, taking this noise for the noise of the rings. After driving nearly 2.5 km, the scooter stalled and did not start. The starter does not turn, the kick starter also does not work, removing the variator cover, I noticed that the motor does not turn, and if you remove the candle it turns but with great difficulty. I need advice because I don’t know what could it be.

Yuri replied: April 9, 2017 at 18:30

You were able to repair what is the reason?

Hello. I have a new Stels skif cpg for 70cc, I run in normally, but lately it has begun to start badly. What could be the problem? Thanks in advance.

San-sanych replied: Mar 4, 2018 at 12:55 pm

I cured one malfunction today! before that I read the content of the site! useful software I do not argue! but it didn’t help me! ((((I have a racer lupus rc50qt-9c scooter! just stopped starting! I flushed the entire fuel system, checked the electric enrichment device, the wiring! and only at the last moment drew attention to the valves! as it turned out, it “dragged on” or “closed »One valve!))))) Maybe there is an explanation for that or it will help someone else. my scooter is not stalling, I drowned it myself when I arrived at the place!))) It was still standing in the rain. so I didn’t think about the valve right away! thanks!))))

Hello. I have 2-ton Nexus F22 and one problem I start to warm up, then I drove a little when to stop and it started, I didn’t even have time to turn off the starter and a new carb in March, I bought a filter in the gas tank, I don’t even know what to do, please help

hello. Tell me please! I bought a new scooter racer tigero rc50qt15e when starting on a cold one does not hold speed, immediately stalls, I have to give gas to start holding it and does not pull up the hill, idle speed jumps from one and a half thousand to two. What is the problem?

San-sanych replied: 4 March 2018 at 01:11 PM

please tell me, when starting on a cold one does not keep the speed, immediately stalls, you have to gas when it warms up it works normally,

San-sanych replied: March 4, 2018 at 12:29 pm

Start-up concentrator. 2. Clogged idle jet. 3. Idle speed is not configured.

Sometimes the scooter starts to gain momentum while driving (even if you release the throttle). It can only be stopped by turning the ignition key. I also tried to accelerate on the central footboard, sometimes it jammed (i.e. it picked up speed itself), but the carriage remained in place. What’s the matter. help me please.

Igor replied: 12 November 2014 at 14:02

Your air sucks somewhere

Please tell me why the scooter stopped gaining momentum, the maximum speed is 35-40 km

San-sanych replied: March 4, 2018 at 12:30 pm

Good day. Such situation. Honda Dio 2-stroke. In the morning I start it up, warm it up for 3.5 minutes, and when I get under way. thick bluish smoke from the exhaust pipe. After everything is fine. What could be?

Nikolay replied: June 1, 2014 at 16:12

This is how it should be on 2 bars.

the 139QMB engine does not keep the idle speed, the carb is poorly adjusted, the compression is good, the ignition is normal, the fuel supply is normal, what is the reason?

San-sanych replied: 4 March 2018 at 12:59 pm

Floats idle on a scooter. possible reasons.

The Fada 5 scooter does not start when it is cold / there is a spark / how to warm up it works well / what could be the reason

San-sanych replied: March 4, 2018 at 12:34 pm

Hello, tell me please, I can’t understand what’s the matter. My Honda cycle 24 starts up normally, but at high rpm it stalls even from the spot. And before that I was smoking heavily.

hello everyone)) can someone tell me? the vento-sorento scooter starts up well when the engine speed increases, it stalls! I will be glad if someone tells the reason. thanks in advance (sergey)

San-sanych replied: Mar 4, 2018 at 12:58 pm

Why does the scooter stall when revving up.

hello help scooter sukida sk 50qt stalled and did not start again

San-sanych replied: 4 March 2018 at 13:01

A cold scooter (moped) engine does not start. we are looking for the reason.

Hello, this is the problem. at the beginning of the movement it is very difficult to accelerate and does not go uphill at all. what could be broken?

San-sanych replied: March 4, 2018 at 12:35 pm

maybe someone will do it. a Honda scooter. drove 35-40 km / h. lost traction, compression. drove up to 10 kilometers at a speed of 50. traction, compression became better.

sergey replied: 23 February 2014 at 15:37

alexey hi had the same problem gave scutukoksa

good afternoon people i have such a problem with the variator the skut barely eats it does not pick up speed what is the reason

San-sanych replied: 4 March 2018 at 13:02

thanks in advance who will answer

San-sanych replied: March 4, 2018 at 12:36 pm

Hi guys! I have a problem, oil is pouring out of the breather! They said that it was a piston, replaced the piston with rings, the valve was ground in, and it was pouring oil all the way. The oil level is ok. Help! What could it be.

The problem is this, I have a Gilera DNA 50 moped, I went through the engine, changed the crankshaft bearings, put new rings, did not touch anything else, I try to start up normally, but there is almost no traction at all, it goes very weakly, maximum 30 km. Before I changed, too, I drove weakly. What could be the reason? Compression is good.

San-sanych replied: 4 March 2018 at 12:37 pm

Hello everyone, my HONDA DIO engine is idling, but when gas is added, the engine stalls

San-sanych replied: 4 March 2018 at 12:38 pm

Hello, tell me who knows how to replace the camshaft chain on a 150 cc scooter, so as not to rivet the links.

I have a Cobra yh50qt-m scooter, do not start, I wanted to give a penny, it suddenly stalled and the leg began to walk easily, the starter has not worked for a long time. Thanks in advance.

San-sanych replied: 4 March 2018 at 13:03

Good afternoon. tell me please, what could be the reason for the pit BJ 82.3 cm3, the norms start, as soon as you give gas for movement, it immediately stalls, but if you pod the gas, it seems like it tries to go but still stalls. 5 days ago I changed the plates, the variator, it just flew. 0950802777. Thanks in advance.

San-sanych replied: 4 March 2018 at 12:39 pm

good afternoon have a problem with a 50cc scooter. does not pick up the maximum speed on the speedometer 90 km and travels only 20 km per hour compression excellent gasoline comes in the carburetor cleaned and blew out the spark excellent ignition everything is set according to the marks on the central footboard it picks up well as soon as he sat down and drove the maximum speed reaches 20 km / h in what could be another reason please tell me in advance thanks

San-sanych replied: March 4, 2018 at 12:39 pm

Good afternoon, please tell me honda takt 24 there is no thrust after replacing the cpg zavoditsa with difficulty tried all the exhaust, carb, vareator, rollers, changes 0 thanks who will respond

San-sanych replied: 4 March 2018 at 12:40 pm

Perhaps you need to go through a run-in.

Hello fellows, in general such a problem, one day I was driving quietly and suddenly the scooter stalled, for 10 minutes I did not touch it at all, I thought it was stalled, but after 10-15 minutes I was going to go, it started up. The gas was kept at full speed, it worked badly, it was released, it was deaf. I sinned on the belt, started from the starter, since there was no kicker, later three days later I assembled a foot in the garage, put it on, it worked well, but it didn’t start right away. Then the paw left me again, later I assembled another one, and it won’t start. What can be wrong?

is it possible to put a carburetor from 2 stroke to 4. worth a valbro.

San-sanych replied: 4 March 2018 at 12:40 pm

Hello. Faced such a problem. Honda Dio 18. After a major overhaul, she began to melt candles. during 1 km run 4 candles were fused. In two candles, the central electrode is fused, and in two external ones. What could be the problem.

Hello. The Suzuki Address v110 scooter starts up cold, keeps the rpm, after warming up, i.e. after driving 1 km, it starts to stall, after starting it again, there is some kind of ringing, and there is no thrust at all after all the norms have cooled down.

Artem replied: 24 February 2015 at 10:36

Good afternoon. you will not tell me what the reason was for me exactly the same problem got out?

Hello! I have a scooter breakdown! It works well at idle. and when you give gas, it doesn’t pick up speed and stalls. and most importantly, standing on your feet cannot spin the wheel. The engine is only repaired, the basket is new. but does not want to go! Tell me what are the problems?

San-sanych replied: 4 March 2018 at 13:05

If the scooter stalls when adding speed.

Suzuki moped, address 50, the thrust is gone and there is no supply of gasoline to the filter under the gas tank, the carburetor is wet with gasoline, they cleaned everything, they checked everything, still there is no traction and there is no supply of gasoline. What could it be.

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the engine does not develop speed

the scooter crawls or stalls immediately after the start (the rear wheel rotates at idle speed). checked the clutch springs, pads (not stuck) turned out to be fine. Checked the pin of the torcdriver everything is fine. but the scooter still does not go smoothly and stalls immediately after the start. if I put it on a double footboard, it starts up and the rear wheel spins, you give it to the gas, it accelerates, but if you press the rear brake it immediately stalls what to do? what is the reason ? tell me ?

Hello! There was a problem, I need help! Honda Tact AF 24 was bought a very long time ago, did not repair it. About three months ago, problems began with adjusting the carburetor, it did not start well on the cold, and increased revs on the hot one. After a month, with a full handle, it feels like someone is holding the mixture from behind. Carb is thrown into the air, dripping clean oil from the air. a week ago, on a full handle, it began to lose momentum and traction to a full stop, but it does not stall. after peregasovki it goes, up to 30-35 and again loses until it stops. black oil began to drip from the air. tell me where to start the repair and all that needs to be done to eliminate!

VANO replied: 6 October 2016 at 05:15

help a scooter honda dio 27 добde dobre kilometriv 3 іtheres the traction loss іthere is a throttle in the engine before the end іtѕ іtѕ іtѕ іtѕ іtѕ іtѕ іtѕ іtѕ іn thе drive іt

San-Sanych replied: March 9, 2015 at 09:13 PM

It looks like it’s overheating. There may be a lack of oil. Try adding oil to gasoline, first at least in a 40 to 1 ratio

Help. storm 150. motor after kapitalki. Departure season of norms. after downtime it is bad to start. when the food itself is still norms with two rides not long and stalls. I changed all the trees. with valves and piston all the rules what to do?

San-Sanych replied: March 9, 2015 at 09:10 PM

Overheating in theory. You need to look towards enriching the mixture.

The guys in the area of ​​the rear variator are clearly not healthy noises. rustling and clinking, and when the engine starts, there is a screeching, you need to replace the variator (12000 km) of the tiger150 run, and the loss of power when gaining more than 60 km, which is interesting but 2, Bolivar,. pulls out, it sometimes stalls, and after removing the carbure, by the way, for some reason, the float may sink, but the benz poured out, set off, such a Baida after climbing a hill, and even though he was a Chinese scooter, he changed the front variator for 8 seasons, candles, belts, filters, hoses to the engine, there are no questions (oil change every 3000, the mean pays 2. 🙂 :), thanks for the help.

San-Sanych replied: March 12, 2015 at 2:46 pm

Rustling and clinking sounds can come from bearings. Squeal at start. slipping of the clutch pads in the bell? well, or the belt slips, always in different ways. The pads can be cleaned with sandpaper and wiped with a solvent along with the inside of the bell, and then you can see whether there will be a squeal or not. Everything else is typical Chinese scooter sores. You need to come to terms with this and constantly be ready for the next repair.

What to do if the scooter won’t start: looking for the cause of the malfunction

Quite often, you can observe cases when the owner is faced with such a problem: the scooter will not start. There are many reasons for this. Most often these are typical breakdowns or malfunctions, especially if the moped was parked in cold weather. Depending on the identified problem, the moped can be repaired in a few minutes or a few hours.

Typical reasons

First of all, you need to check: the ignition and power systems. Carry out a check in those places that can set the moped in motion. The reasons why the scooter won’t start, especially in cold weather, may be the following:

No spark in the spark plug

The scooter will not start because there is no spark in the spark plug. In this case, the following must be done: the candle is unscrewed and checked for suitability. Connected to the ignition coil with a wire. Placed on the cylinder. When the crankshaft rotates, the spark on the spark plug is checked. The scooter will not start if there is no spark on the spark plug, or if there is a spark, but it is not constant.

Reasons for the absence of a spark on the candle

Cold weather

The scooter may not start well in cold weather if there is a problem with the spark plug cap or its connector. In such a situation, the cap is unscrewed from the wire, and the wire is brought 0.3 cm to the engine element made of metal to rotate the crankshaft.

The moped can pass current in cold weather. This is due to the fact that there is contact with the bare part of the wire and the metal element, thanks to which the scooter starts.

Malfunctions in the power supply system

A moped may not start well in cold weather if there is a problem in the power system: a lack of fuel or an excess of it. In this case, it is necessary to check the following elements: a gas tank, a fuel tap, a starting enrichment and a gas pump.

First of all, check the fuel pump of the moped

Along with this, it should be noted that the moped needs to be repaired, and it is also necessary to disassemble the parts only if there is complete confidence in their malfunction. It is best to put only new parts on the scooter, not used ones, otherwise, when starting from the starter, the engine will either work poorly or will not start at all.

Reasons for the absence of a spark

Often, owners may encounter cases of starting malfunction in cold weather, although the moped was driving well in the fall. Initially, you need to unscrew the candle and carefully inspect if there is a spark, oily and color.

Carbon deposits on the electrode

The spark may be absent, if the electrode is covered with carbon deposits, then they are cleaned with a metal brush. If there is even the slightest doubt about the serviceability of the candle, you should immediately replace it, thereby making your life easier for the future.

Contact acidification

If the external signs of the candle correspond to suitability, and there is also no spark, then it is necessary to check whether there is a discharge. It is worth noting that you need to be extremely careful, as it can shock you well. If there is no spark, and the external signs of the candle are normal, then the scooter is checked for electronics for acidification of contacts.

Not enough fuel

In the event that there is a spark, but the moped still does not start well from the starter in cold weather, you should pay attention to the fuel tank. If it is empty, then it is filled. It is worth noting why old gasoline spills out of the carburetor float chamber. How to do it? There is a bolt at the bottom of the carburetor, it is unscrewed, and after all the fuel has flowed out, it is screwed back. A full tank of fuel is poured into the garage before placing the moped in the garage in cold weather.

Unscrew the bolt and pour out the old gasoline from the carburetor float chamber

If the above is checked and done, and the scooter does not start well from the starter, then you can do the following repairs:

  • The carburetor is removed and the air filter is cleaned;
  • The carburetor is cleaned, the jets and channels are purged;
  • Everything is going back.

How to restore starting from the starter

The moped does not start well from the starter, however, it is simple and easy to do this from the foot. With a poor start of the engine from the starter, you first need to check the fuse located in the battery compartment.

The location of the fuse on the battery is marked with an arrow

Due to the often poor-quality manufacture of fuses, and, consequently, of the entire starter, the wire inside the starter glass bulb can barely touch the contact caps, which is why the fuse contact becomes inappropriate. After the defective fuse has been replaced, the moped can be started using the starter.

How to do your own engine repair

For a scooter engine to function properly, it needs spark, fuel and compression. The main slogan of the scooter mechanic is that there are no miracles. Remember that in the process of troubleshooting and repairing a scooter, you can find out if there is a spark and compression, or why there is no fuel flow. Therefore, if the engine does not start from the starter, then some component is not present or it is in a faulty state.

Many are familiar with the situation when not only too lazy to give the scooter to the workshop, but also do not want to pay for it all. Then you can repair everything yourself.

Sequence of actions for repair

The main rule for detecting a malfunction and repairing a scooter is the step-by-step exclusion of system elements, when identifying the causes of a breakdown in one of them. Search and repair, especially when starting from a starter, must be done in accordance with a strict sequence, where the chain can act as the beginning, and the end, for example, if there is or is not a spark. It is worth noting that you do not need to immediately run after the new switch on the scooter, first make sure that the generator is functioning perfectly, only then test the wiring if there is no spark, etc.

Checking basic systems

It is important to remember that gasoline has a tendency to lose its properties if it stands in cold weather and may not even ignite. Also, before making the final diagnosis and starting the repair of the moped, if it does not start from the starter, you need to make sure that the candle can do its job, and the carburetor is functioning normally.

Remember that the scooter starts from the starter when it has an integral part with the correct operation of the variator, clutch, camshaft group and valve. Simply put, if all power systems are in good condition, then there is a problem in the transmission, thanks to the torque of the crankshaft, which works closely with the variator.

In the process of diagnosing and repairing a scooter, in some cases it is necessary to do a thorough check not only of individual elements, but of the entire system. For example, if there is debris in the carburetor, provided that it is intact and the air filter has been impregnated, the presence of dirt in the cavity of the gas tank and the fuel filter is also carefully examined.