I have a 2008 rtv 500 Will fire up and die but if I give it a little throttle it will idle but will not go full throttle as soon as I let on gas it does then go to restart it gets harder and harder
It is fuel injected and found out I’m only getting fire to one plug but the go to the same coil it it possible the coil is only firing from one sideSounds like a fuel delivery issue. Start by check/replace fuel filters. Is it carbureted? Clean the bowl and jets.
Also check your air filter box and remove mouse nests etc.