Honda dio scooter won’t start reasons

Не заводится скутер Honda Dio AF 56

Compression check

The reason why the scooter does not pull uphill or does not accelerate well may be a decrease in compression. This problem occurs due to:

  • Active operation of equipment at maximum capacities.
  • Cylinder ring wear.
  • Incorrectly selected parts.
  • Cylinder boring error.

Compression testing can be performed using a compression gauge. Ideally, the pressure should be 10 bar, but 7-8 bar is not bad either. If the indicators are lower, then you need to lubricate the assembly, replace the ring and make sure that all parts are in good condition.

Oil check

The reason why the 4 ton scooter does not pull can be a lack of oil or its poor quality. Therefore, if the owner noticed a deterioration in dynamics, he should check the level of the technical fluid. Decreased oil can lead to:

  • Excessive wear of parts.
  • Reducing the power of the device.
  • Overheating of the motor.

Particular attention should be paid to the quality of the oil. It is not recommended to fill the scooter with too viscous or low-quality liquid. This applies to both four-stroke and two-stroke devices.

Loss of power is also observed when the oil pump does not work properly. If the device pumps more or less fluid, the motor will start to swell or overheat. In this case, it is recommended to visit the service station and restore the system settings. Ignoring the problem will lead to wear and even seizure of the motor.

The main causes of the problem

There are several problems that cause the scooter to pull poorly or not run at all. Among them:

  • Broken clutch.
  • Broken CVT belt.
  • Reduced compression.
  • Incorrectly matched variator rollers.
  • Lean or rich fuel mixture.
  • Clogged air filter.
  • Defective starting enrichment.
  • Clogged muffler.

These are the main reasons why the scooter does not pull or travels slowly. But there are several more rare breakdowns, including: switch malfunction, plug damage, incorrectly configured brake system.

Checking the clutch

If everything is in order with the rollers and the belt, and the scooter starts but does not pull, you need to check the clutch. Attention should be paid to:

  • Drum state.
  • Springs that hold the pads.
  • Pads status.
  • Torque spring (it may burst).

The rider needs to inspect the entire assembly as there may be other problems.

How the device should work?

To begin with, it’s worth finding out what dynamics the device has. This is especially true if you bought a used scooter and do not know how it worked initially. It should be noted right away that this applies only to four-stroke 50 cc models. Such devices simply do not have significant power, so their dynamics leaves much to be desired.

But if “under the hood” of the technology there is an engine with a capacity of 62 cc. cm, then you need to diagnose the device.

The scooter does not pull. the reasons and what to do if the scooter pulls poorly or does not pull uphill at all

Some motorists are faced with a problem when the engine of the equipment is working properly, but the scooter does not pull. The device simply does not move from its place or drives slowly. Oddly enough, this is a fairly simple problem that even a novice rider can fix. Therefore, let’s figure out why the scooter does not pull, and how to “reanimate” the technique.

Honda DIO won’t start

Initially, it is necessary to unscrew the candle and carefully inspect if there is a spark, oily and color.

Carbon deposits on the electrode Spark may be absent, if the electrode is covered with carbon deposits, they are cleaned with a metal brush.

If there is even the slightest doubt about the serviceability of the candle, it is worth replacing it immediately, thereby making your life easier for the future. Acidification of contacts 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 why the Honda dio scooter does not start.

Insufficient amount of 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 why the Honda dio scooter does not start with a 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.

Before placing the moped in the garage in cold weather, a full tank of fuel is filled. 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.

If the engine starts from the starter poorly, you first need to check the fuse located in the battery compartment. Why does the Honda dio scooter not start the location of the fuse on the battery is marked with an arrow Due to the often poor-quality manufacture of fuses, and therefore 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 an independent engine repair For the proper functioning of a scooter engine, it needs the following components: The main slogan of a scooter-mechanic is that there are no miracles.

Remember that in the process of troubleshooting and repairing a scooter, you can find out: Therefore, if the engine does not start from the starter, then some component is not there or it is in a faulty condition. Many people 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.

READ  How to adjust the carburetor on a Honda Dio scooter

Then you can repair why the Honda dio scooter does not start on its own. Sequence of actions during 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 the.

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 the main systems It is important to remember that gasoline has a tendency to lose its properties if it stands in cold weather and maybe why the Honda dio scooter does not start and 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 proper operation why the Honda dio scooter, clutch, camshaft group and valve does not start.

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 also 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.

Source: Causes and possible breakdowns: Scooter owners are happy owners of a fashionable and comfortable vehicle that will easily fit into any stream and will help to get to the desired point even in conditions of severe traffic jams. But sometimes any driver is faced with a technical problem, why the Honda scooter does not start, it can happen to everyone. the scooter will not start.

What is the reason? How it works Why won’t the scooter start? There can be many reasons for this. from a minor engine malfunction to a serious breakdown.

Honda Dio AF 34 won’t start

Only after that you can start adjusting. Adjusting the carburetor The choke needle can move within a small range relative to it. To do this, the needle has grooves into which the locking ring is inserted. The number of these grooves is 5. We put this ring in the middle groove third from the top or bottom.

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.

One of the most common breakdowns is the failure of the scooter to start from the button.

As a rule, 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.

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 sensor malfunction 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 discharged This often happens when the equipment is idle for a long time. To solve the problem, it is enough to 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.
  • No spark in the spark plug To test this version, unscrew the spark plug, attach it to an unpainted part of the engine (for example, to the cylinder), and turn the crankshaft with a kickstarter. At the same time, 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.
  • Fuel cock and / or fuel line clogged If gasoline is not 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 need to be cleaned.
  • The carburetor is clogged Difficult starting of the engine, “floating” revolutions, failures in the engine operation. all this indicates that the carburetor needs cleaning. To remove the carburetor, you need to unscrew the inlet 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 Inspect 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.

To check the health of the central fuse, measure the voltage at the battery terminals and compare with the voltage after the fuse.

If losses are detected during measurements, 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.

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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.

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 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.

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 site or on the forum of our site. Good luck on the road!

You can also check out other articles on the topic:

Scooters Service and Repair

The scooter engine does not work well at idle.

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

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

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 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 malfunctions, today’s article provides diagrams in the most convenient form. Each diagram summarizes the test, symptoms and causes of certain scooter malfunctions by category.

Won’t start scooter Honda Dio

The schematic approach is easier to remember, easier to digest, and in a short time allows you to detect the problem.

So let’s start with the most popular point:

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 precisely 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

To begin with, 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 this 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 using 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 that Honor follows 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. This 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 in tight enough contact with 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 on a cold one.

This phenomenon can occur 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 no disconnection and damage points were found, 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;

Scooters Service and Repair

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 an excess of it.

READ  Missing Spark On Honda Scooter

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 main line, 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 plays the role of a crane. sometimes it is this membrane that 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 by the fuel pump. In this case, of course, the aforementioned fuel taps are missing, since they are simply not needed. It is very simple to check the operation of the gasoline pump, disconnect the gasoline supply hose to the carburetor and pump the crankshaft with a kick or electric starter, the gasoline 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. In short, the essence 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 come out of the body by 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 rinse it. How to do this has already been described in previous articles.

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:

How to do your own engine repair

For a scooter engine to function properly, it requires 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.

honda, scooter, start, reasons

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.

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 such elements: a gas tank, a fuel tap, a starting enrichment and a gas pump.

First of all, check the gas pump of the moped

Along with this, it is worth noting 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.

Acidification of contacts

If the external signs of the candle correspond to suitability, and there is also no spark, then a check must be made to see if 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 the contacts.

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:

Insufficient 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. Before placing the moped in the garage in cold weather, a full tank of fuel is poured.

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.

Reasons for the absence of a spark

Often, owners can face cases of starting malfunction in cold weather, although even in the fall, the moped was driving well. Initially, it is necessary 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.

How to restore starting from the starter

The moped does not start well from the starter, however, it is simple and easy to do it from the paw. If the engine starts from the starter poorly, 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.