I have a 2001 Suziki ATV Quadmaster; LT-A500FK. It has 500 miles on it. While going downhill or coasting, it missfires (not backfires). It is like the engine jerks. I don't know if this is a transmition problem or spark plugs. Myself and the kids drive it around our 10 acres (no hard riding).

I have not changed the sparks plugs, yet.

I would welcome a suggestion.

Thank you,
David

 

chances are its carburator related, but it definatley wouldnt hurt to atleast pull the plug(s) and wire brush em off, and see what happens.

 

Any chances it is gear/transmission related?

 

nah it shouldnt be

 

Thanks,
I will try pulling the plugs. Anything special besides a deep socket wrench to check the plugs. I changed the plugs on my snowmobile once. I would think this would be simliar.

Correct?

 

well i'd hope thats all thats involved.

im not too familiar with the quadmaster 500, but i sure can tell ya, some of these newer bikes are the biggest pains in the ***** when it comes to doing the simplest of things.

good luck dude

 

I changed the spark plug with a new plug. Problem still exists.

When I drive downhill (the throttle is NOT depressed the whole time) the engine goes clunk like it is trying to downshift. When I drive uphill (throttle is depressed the whole time) the engine reacts fine.

Any further direction?

 

well, does it sound like an actual metal-on-metal clanking noise? i was under the impression that it was popping as in spitting and sputtering...