What to do if there is no spark on a children's ATV?

Today, not only an experienced adult, but also a beginning child rider can ride an ATV. For little fidgets and lovers of active leisure on wheels, a huge number of models are offered - from small and compact to quite “adult” and powerful, with large engines and impressive parameters. Therefore, buying an ATV for children is not a problem.

The design of such models exactly replicates full-fledged ATVs for large ones. Moreover, a children's quad also requires periodic maintenance and replacement of consumables. And breakdowns on such four-wheelers may not be “childish” or “toy-like” at all. We'll tell you what to do if there is no spark on your child's ATV.

What to do if there is no spark on a children's ATV?

If the vehicle engine does not want to start, then the first objects of research are the fuel system and the ignition system. You need to check if there is any spark in the spark plug. The algorithm of actions is basically the same, both for a full-fledged ATV and for a child’s one. And if you understand that there is no spark on the children's ATV, then you need to act in approximately this order:

We check the functionality of the spark plug. To do this, you need to unscrew the spark plug and clean it from carbon deposits. Then we insert the end of the spark plug into the cap and touch the engine with the second edge and turn on the ignition so that the crankshaft turns. If the candle is flooded and wet, it must be dried and calcined at high temperatures. Better yet, replace it with a new, working one.
After this, we check the electrical wiring, paying special attention to soldering points and possible oxides on the contacts. Eliminate all damage to the winding, remove traces of oxidation of the contacts, and carefully solder all connection points.
After this, you need to make sure that the ignition coil is working properly. To do this, use a multimeter and check the resistance at the coil contacts.
If your child has a four-stroke ATV, the next step is to check the commutator. If this part is faulty or causes you doubts, it is better to immediately replace the entire unit, since it cannot be repaired.
The last step is to measure the resistance on the generator. If the readings are not normal, the problem lies in the pulse sensor or in the generator winding.

If you perform all the steps consistently and carefully, the breakdown will most likely be found and fixed. And the ATV will start up quickly and rush your child along the road or rough terrain. But it also happens that the specified algorithm of actions does not help, and there is still no spark on the children's ATV. What to do in this case?

Repair cost

It is worth understanding that repairing a snowmobile is not such a simple task, but anyone can figure it out if they want. The mechanism is especially easy to study for those who have repaired motorcycles themselves.

The cost of repair will vary depending on the complexity of the problem and the replacement parts used. A simple inspection and diagnosis of any Lynx model will cost from 2,000 rubles. If you want to leave your iron friend for repairs, then there are a lot of options, the cost will vary according to:

difficulty of breakdown;
used domestic or imported spare parts;
repair timing.

On average, rebuilding an engine costs from 30,000 rubles on domestic equipment; imported ones are more expensive.

Where else to look for the reason for the lack of spark?

So, the spark has disappeared on the children's ATV, and you have ruled out faulty wiring or the ignition system. What to do next? The next diagnostic objects will be the fuel supply system. The fact is that with proper and timely fuel supply, even a weak or irregular spark can ensure normal engine operation. And since there is no spark on the ATV and it is motionless, it means that you need to check what kind of fuel is coming from the fuel tank to the combustion chamber. You can find out more about the gasoline recommended for a quadric from the salon consultants https://dvako.com.ua.

For this:

clean the filters - both the fuel supply and the air supply;
check the integrity of the hoses and tubes through which the fuel mixture is supplied;
make sure that the carburetor vent is open, and also that the seal in the carburetor itself is not broken;
you need to set the correct position of the needle that regulates the fuel supply.

Inspecting and troubleshooting the entire fuel system will help resolve the problem. And in the future, change the spark plugs on time, clean the filter and fill the gas tank with only good fuel. And your child will always be able to ride a fast and maneuverable ATV “with a breeze”! And you won’t remember such a problem as the loss of spark on a child’s ATV.

In this section, we decided to post a list of ATV malfunctions that can occur on different models. And most importantly, our table describes the elimination methods for performing independent ATV repairs. Using these instructions, you can find the breakdown yourself and fix it without resorting to the help of a motorcycle service. I would like to note that this table is not focused on any specific ATV model, but is intended to help the owner of any ATV.

Malfunction	Cause	Diagnostic method	Elimination method
The engine does not rotate	Low battery charge	Check battery voltage	Charge the battery
Electric starter faulty	Check the voltage at the electric starter	Replace the electric starter
Starter electric relay is faulty	Check the voltage on the electric relay	Replace the electric relay
The ignition switch is faulty	Check the ignition switch	Replace the ignition switch
Engine jammed	Crank the engine manually	Contact Motoservice
The engine smokes	Incorrect fuel mixture	The smoke is black, the fuel is unstable, the engine does not develop speed	Clean the carburetor
Air filter dirty	The smoke is black, the fuel is unstable, the engine does not develop speed	Clean the air filter
Worn piston group	The smoke is blue, there is a consumption of engine oil.	Contact a motorcycle service
Engine noise	—	—	Contact a motorcycle service
Loss of engine power	Clutch worn out	Visual inspection	Replace clutch
Incorrect fuel mixture	—	Clean the fuel system
Air filter dirty	Visual inspection	Clean the air filter
Worn piston group	Visual inspection	Contact a motorcycle service
There are faults in the ATV transmission	see transmission section	—
“Shooting” at the silencer	Low octane gasoline	—	Replace gasoline
Timing chain stretched	Visual inspection	Contact a motorcycle service
Carbon deposits on timing valves	Visual inspection	Contact a motorcycle service
Late ignition	Visual inspection	Check ignition timing
The engine will not start	Poor air-fuel mixture	Wet spark plug, smell of gasoline from the muffler,	clean the fuel and air system
No spark at the spark plug	Install a known good spark plug.	Replace spark plug
Ignition coil is faulty	Install a known good ignition coil	Replace ignition coil
The switch is faulty	Install a known-good switch	Replace the switch
Hall sensor is faulty	Check the operation of the hall sensor	Replace hall sensor
No compression in the CPG	Check compression in the CPG	Contact a motorcycle service

Malfunction	Cause	Diagnostic method	Elimination method
Loss of engine power	Clutch worn out	Visual inspection	Replace clutch
The ATV does not reach maximum speed	Worn variator belt	Visual inspection	Replace the variator belt
The ATV does not move	Broken variator belt	Visual inspection	Replace the variator belt
Separate gearbox mode does not work	Mechanical damage inside the gearbox	Visual inspection	ATV engine repair
Rumble in the ATV gearbox	No oil in gearbox	Visual inspection	Contact a motorcycle service
Worn gearbox bearing	Visual inspection	Contact a motorcycle service
The display does not show the gearbox operating mode	Faulty wiring	Electrical wiring diagnostics	Contact a motorcycle service
CVT slip	Presence of water in the variator	Visual inspection	Remove water from the variator

Malfunction	Cause	Diagnostic method	Elimination method
Knocking noise when riding an ATV	Worn ball joints	Diagnostics of the ATV chassis	Replace ball joints
Worn bushings of levers or shock absorber	Diagnostics of the ATV chassis	Replace lever or shock absorber bushings
Worn tie rod ends	Diagnostics of the ATV chassis	Replace tie rod ends
Strong vibration from the engine	Worn engine mounts	Visual inspection	Replace engine mounts
The ATV “steers” to the side when driving	Front wheel toe adjustment needs to be done
Tire pressure difference	Check tire pressure	Inflate tire pressure
Increased gasoline consumption	Low pressure in ATV tires	Check tire pressure	Inflate tire pressure
Wheel hum or noise	Worn wheel bearing	check wheel bearing	Contact a motorcycle service

Malfunction	Cause	Diagnostic method	Elimination method
Poor braking	Worn brake pads	Visual inspection	Replace brake pads
Air in the brake system	Replace brake fluid
Low brake fluid level	Visual inspection	Add brake fluid
Brake cable faulty	Visual inspection	Replace the brake cable

Malfunction	Cause	Diagnostic method	Elimination method
Battery won't charge	Battery faulty	Battery diagnostics using a load fork	Replace battery
Faulty relay regulator	Install a known-good relay regulator	Replace the relay regulator
Generator faulty	Check the resistance of the generator windings	Replace generator
Battery drains quickly	short circuit in electrical wiring	—	Contact a motorcycle service
The ATV starts spontaneously	faulty start relay	Replace start relay
Start button sticks	Replace the start button
Electrical appliances and lighting lamps often break down	Increased generator power	Check the resistance of the generator windings	Replace generator
Increased network voltage	Check the voltage regulator relay	Replace the relay regulator
The engine is boiling	electric fan is faulty	Check the electric fan and fuse	Replace the electric fan or fuse
Fan switch sensor is faulty	—	Replace the fan switch sensor

Comments

I would recommend trying with another battery (for example, temporarily take it from a car). Just don’t disconnect the battery while the engine is running - the ignition unit will burn out in an instant.

Does the starter turn at idle or does the starter turn normally but the quad won’t start?

The starter turns the engine, I took the battery for service, they said that charging was ok before.

This requires some clarification - how does the starter turn the engine? Very cheerful or not very cheerful?

The point is this - Kazuma has such a switch that a slight drop in voltage can cause a lack of spark, and at the same time the battery charge is enough to crank the engine with the starter. The first sign is that it starts from the rope and does not start from the starter.

It's easy to check - see comment #1. And the fact that someone said that the battery is fine means absolutely nothing!

spins vigorously! Well, not really “means nothing” kmk. if you rely on what has been said that the battery holds a charge, I drive, turn it off, try with the button... in vain (((I guess that 400 km after installing the new battery, I simply couldn’t throw it into the trash so that it wouldn’t hold a charge.

Damn! Yes, try it with a different battery! It’s just a matter of 5 minutes, and based on the results you can dig further.

I also started sinning on the switch after dancing with the battery

Let's first. Did it start on the old battery? Or they replaced it with a new battery and it started starting. Which battery, acid or gel? I had a case in the 90s, a friend bought a new car, while it was warm everything started, the frost hit and it didn’t plow. We started to figure it out, and at the car dealership, instead of acid in the battery, they poured water into the dry-charged one, and it froze.

If there was a problem with the switch the handle wouldn't start. You need to look along the chain, whether the terminals are screwed in, whether the contacts in the terminals, the starter relay, or the starter itself are coming off. I had this happen on a Panda, the starter winding burned out and it turned twice as slow. It also seemed to be turning vigorously, but the engine was not strong enough to start.

dachshund, you’re very right - let’s take it in order!) I bought the battery immediately after buying the quad and installed a new one, a regular alkaline one (actually the same as it was before.) about three months ago and drove no more than 300-400 km on it. Once I came to the garage and when I pressed the button, the ATV simply turned the flywheel without even a hint of grabbing. I looked at the button - it was unclicked, then I experimented with the frog to see if it works - when the pedal is not depressed, the starter does not turn at all, from here I concluded that the frog is working! I checked the fuse - everything is fine. It started from the handle without any problems! Even then I made a mistake about the battery and let the quad work for half an hour. I turn it off and try to start it with the button, but in vain! spins just as vigorously as before! just in case, I took it to a friend (he has a good charger) when they connected it, the currents all dropped immediately, which he told me over the phone that the battery was, in principle, working (not discharged)

I noticed this point: when you turn the key, the beeper always worked before, but now it doesn’t always work. but in both cases the quadric still refused to start

Here’s another moment: you know, when the car won’t start, you press on the gas pedal and it starts to stall, here it felt about the same: you pull the trigger and it starts to turn more vigorously, but without flashes.

Adjusting the fuel level in the float chamber of ATVs

The performance of a four-wheeler depends on the correct level of gasoline in the carburetor. An excessive amount will flood the candles, spill on the ground and lead to unnecessary expenses. If too little fuel is supplied, the engine simply will not start.

How to optimally adjust the fuel supply

4-stroke ATVs have carburetors with an opaque drain hose tube hanging down. Therefore, first of all, replace it with transparent one.
Lift the free end of the hose up.
Unscrew the drain screw next to the tube to get rid of excess fuel. Based on the amount of liquid entering the tube, determine the level of gasoline in the carburetor. The norm is the line (1-1.5 mm below is allowed) between the housing and the float chamber.
To adjust the fuel supply level, open the float chamber and find the tab that covers the shut-off needle.
By bending the tongue down, you will increase the intensity of fuel delivery. By bending it up, on the contrary, lower it. Perform all manipulations with caution, as the structure is quite fragile.

ATV won't start: Electric starter won't turn

The engine is turned off - the red light on the right side of the steering wheel is on.
The battery voltage is too low, i.e. You can hear the characteristic chirping of the starter relay: charge or replace the battery.
Contacts in the ignition switch or starter button are dirty: unscrew the switch and clean the contacts, use a special spray for electrical installations.
Main fuse or ignition relay has blown: check and replace if necessary.
Starter malfunction, for example due to burnt-out stator or armature coils: contact a specialist.

Expert advice

It happens that the Lynx snowmobile stalls while fishing or hunting in the forest, and there is simply nothing to get it out of there. To avoid having to spend the night in an open field or forest more often, you can try some tricks from experts:

pinch the hose either from the supply or from the injection;
when turning off, add more gas, then after about an hour, pump up the air with a bulb, when starting, open the gas to 1/5;
add gas while switching off, do not touch the gas when starting, and then increase the speed gradually.

These simple maneuvers have often helped many people out, and we hope that they will serve you well if necessary.

Causes of ATV breakdowns and troubleshooting

No starter after turning the key

The shut-off valve is closed: open it or set it to the “reserve” position. There is old and/or contaminated fuel in the tank: empty the float chambers (the small screw at the bottom of them), check if necessary if they are dirty and add new fuel.
The fuel vacuum valve does not open: remove the hose from it and crank the engine. If fuel is not flowing, the vacuum diaphragm at the valve or the vacuum suction line is likely to blame. Turn the tap to the PRI or Reserve position.
Clogged fuel tap pipe or filter: Remove the pipe from the tap and check if fuel flows when you open it. If so, the secondary fuel filter is clogged and needs to be replaced. If not, remove and clean the faucet.
Flooded engine: Remove the spark plugs and dry them, close the fuel valve, turn off the lights if you can. Turn the throttle fully and engage the starter - the spark plugs should be on the wires and on the engine. Don't touch the candles. Put them on and start the engine.

ATV won't start: Starter works, but engine is quiet

The bendix is broken or, after inspection, the starter turns in the opposite direction in an incorrectly assembled housing, the clamps are connected upside down: have the mechanics check the starter (they will do this without removing it from the motorcycle).

ATV stalls : Starter relay clicks but engine does not start

Loose starter cord or short circuit due to broken wire: check connection, remove rust, check current with multimeter.

Launch in the field

Breakdowns often occur when the ATV is located far from home or even the highway. In this case, you will need a set of simple hand tools and a few spare parts. In most cases, the car can be started.

Some owners of such equipment are interested in how to start an ATV from a pusher. It should be said right away that this will not be possible with an automatic transmission. Only for models with a manual transmission, you can try to start the engine from the pushrod. In other cases, it is recommended to look for the cause of the breakdown using the points listed above. You can fix many problems and start the ATV even in the forest.

Why do you need carburetor adjustment at all?

For stable operation of the ATV, it is necessary that the engine receives the optimal amount of fuel mixture corresponding to its speed range. Otherwise, the following problems may occur:

Difficulties with the factory, the engine constantly stalls.
Weak power characteristics, sluggish response to the throttle trigger.
Poor dynamics when accelerating from the bottom, accompanied by spontaneous jerks when moving.
Dips observed mainly during overclocking.
High fuel consumption.
Excessive formation of carbon deposits on the walls of the combustion chamber and, as a result, overheating of the engine.

What needs to be done in this case:

Adjust the idle speed using the mixture quality screw and the number of revolutions.
Adjust the quality of the mixture using a needle.
Adjust the fuel level.

Important! Make adjustments only when the carburetor is cleaned inside and out, and when the engine is warmed up to operating temperature.

The engine is low-powered and consumes a lot of gasoline

Air filter dirty, air intake system clogged: clean / replace the filter. Make sure that all air intake openings are not blocked and that air flows freely into the engine.
Ignition or electrical system failure: Make sure the battery is charged and properly connected, the ignition contacts are dry and the wiring is good.
Voltage in the ignition system is too low: charge the battery, check the condition of all connections, remove rust.
Faulty spark plugs: check the condition of the spark plugs; Check the gap between the electrodes, adjust if necessary, screw in new spark plugs.

Rules for operating an ATV in winter

There are quite a few simple rules thanks to which the equipment will be ready for the winter period. It is worth saying that you cannot wait for the last moment, and if your plans include winter operation of the ATV, then its preparation should begin in the fall.

Otherwise, a sudden cold snap can take you by surprise and cause a lot of inconvenience.

It is necessary to carefully inspect the vehicle for any malfunctions and, if any are found, eliminate them;
Clean the carburetor. Thanks to this, when it gets below zero outside the window, it will be much easier to start the ATV and start on it;
It is imperative to purchase fuels and lubricants that are adapted to negative temperatures and will not freeze in the system at the most inopportune moment. First of all, this concerns engine oil and coolant fluid (antifreeze). In the case of oil, you should purchase a material with a lower viscosity;
It is also worth paying attention to the battery. If there are moments when the temperature outside the window is above zero, and it is discharged, then you should think about replacing it. Otherwise, it can be guaranteed that it will fail at subzero temperatures;
It is advisable to think about the room in which the ATV will be stored for the cold season. It is very good if the garage is heated. This will save you from unnecessary movements, because if the room is cold, then it would be advisable to take the battery with you to a warm place after each trip. The battery should also be recharged from time to time;
It is necessary to pay attention to the surface of the vehicle - get a dispersant spray and treat the entire ATV with it. Thanks to this, excess moisture will be removed from the surface, which, in turn, will prevent unwanted freezing of plastic and units;
The ignition switch along with the trigger mechanism and throttle cable should be lubricated with VD-40. It is also suitable for processing main moving parts, especially if they are made of rubber. In addition, various silicone lubricants can be used to process rubber, leather or leatherette parts;
If the quad is washed, the entire procedure for lubricating the parts and assemblies of the vehicle must be repeated again;
Replace tires with winter ones. This will allow the equipment to feel more stable on a slippery surface. In some cases, you can get studded or more toothy tires, as well as chains for ATV wheels;
While you're paying attention to your four-wheeled friend, don't forget about yourself. When riding an ATV, just like on a motorcycle, you must have proper equipment in the winter, otherwise there is a risk of frostbite in certain parts of the body. So, for a comfortable ride you will need winter gloves, glasses or a helmet with a visor, a balaclava, special thermal overalls, and shoes. Otherwise, under the snowy wind, pleasure can easily be replaced by real hell.