this is a 2005 TRX 350 FE 4x4. everytime we start and try to go, it makes a popping noise and tries to die out by itself. what do you think is the issue??

 

Does it run better on choke? If so, clean the carb out.

 

yes. we checked the choke, and the choke is not the problem. We might have to change the pistons and rings, because when we are running it there are a lot of oil leaking out of the engine. have to keep filling the engine with oil every three days.

 

Piston & ring problems mean the engine burns oil, so lots of blue smoke. Oil leaking out is a blown gasket, oil seal, or cracked casting. You trace where the oil is leaking from, and fix it.