can anyone tell me why my 4wheeler wont start?

Question

it will crank & crank but does nothing but backfire

Answer 1

sounds like the timing is way off

Answer 2

Always give year, make, engine size and model # when asking questions. We don't know how old it is, or if it's a 2 or 4 stroke.
-Fowled spark plug. Check for spark. If dirty, change.
-Dirty carb. Remove and clean all passegways and jets with carb cleaner in spray can. Hold the jets up to the light. You should be able to see through them. If there's any junk in the float bowl, install inline fuel filter.
-Bad gas. When in doubt, throw it out. Drain the tank.
-Dirty air cleaner. Clean if needed.
-Valve adjustment. Check to make sure they aren't tight.
-If it's a 2 stroke and the piston & rings have never been changed, it might be time.

Answer 3

nicely if the atv is making a clicking sound once you click the commencing up button then its the battery. yet i could take it to a small engine fix place, or tae it to love a yamaha save or anyplace like that and feature your atv completely inspected. via fact in the journey that your little cousin is driving it some thing ought to be risky and probably harm her. yet id maximum probable in simple terms pass get an entire inspection, and the sole way yo ought to harm your atv isn't journey it for approximately 5months, 5days won't harm it.

Answer 4

you have water in your gas. this is caused by condensation forming inside of your gas fill cap and gas gauge. look for primer button on your carburator because moisture has formed in your carburater. when you complete this process install new spark plug and avoid leaving your atv in the rain.

Answer 5

Well........ I was gunna throw some ideas but looks like "guardrailjim" has covered all the basics!!! Good answer jim!!!!

Answer 6

check to see if u have spark...if so..spray some starting fluid in the cylinder...make sure u got a good gas flow

Answer 7

maybe have spark plug wires crossed,