Why does my four wheeler turn over but not start?
If an ATV motor turns over, but doesn’t start, and the battery seems to be fine; it’s time to check out your ignition system. First, check out your spark plugs via a physical inspection. Look for any corrosion or gunk on the plug itself, and ensure that there is a small gap present in the spark gap of the plug.
Why does my ATV run for a few minutes then stall?
As the engine heats up the coil looses its resistance and fails to deliver the charge needed to start the engine. Without bombarding you with technical numbers or making you buy testing equipment, I would simply run the ATV until it dies and pull the plug.
When do you need to service a Yamaha ATV?
Compare the two results and if the second is significantly lower than the first you might have found your problem. Having a Yamaha Service manual to compare proper “In Spec” compression numbers is very important. If low or out of spec compression is found then you will need to service the top end of the engine.
What should I do if my ATV backfires?
Meaning that air flowing into your engine is getting chocked off somewhere. Many a time, it’s at the air filter. So if your ATV keeps backfiring, first check the air filter. If it’s full of deposits and large sediments, replace it (for paper filters) or wash it (for foam filters). This should assist in balancing out the fuel/ air ratio.
Why does my ATV engine run too rich?
A dramatic pop. And while many things can make your ATV engine run too rich, the most common cause is a clogged up air filter. Yes, having an influx of fuel is often the result of air scarcity. Meaning that air flowing into your engine is getting chocked off somewhere. Many a time, it’s at the air filter.
How to troubleshoot Yamaha ATV starting problems?
Diagnosing ATV starting problems is relatively easy to do, and there are multiple tests you can run to find the problem. You want to start by testing your battery, of course.
As the engine heats up the coil looses its resistance and fails to deliver the charge needed to start the engine. Without bombarding you with technical numbers or making you buy testing equipment, I would simply run the ATV until it dies and pull the plug.
What to do when your ATV won’t start?
If your ATV doesn’t crank at all when you’re trying to start it, there are a few basic things to look into. 1. Make sure the kill switch/run switch is in the “ON” or “RUN” position. You’d be surprised how often the solution to an ATV that won’t start is forgetting to turn on the kill switch.
Why does my ATV backfire when I take it off the road?
When you don’t ride your ATV for a long time, the fuel inside its tank starts to degrade. As soon as you get back on the road, the degraded fuel clogs up your carburettor. This leads to a reduction of fresh air intake into the engine, which affects the fuel/ air ratio in the combustion chamber.