KFX cutting out, but only in neutral?

[kc 300EX]

Ok, my KFX starts fine, every time. I let it warm up, every time. All of a sudden when I try to rev it in neutral it bogs and back fires and I can't get it to rev. As soon as I put it into gear, even if I dont move, this stops and it revs fine, but still will not rev in neutral.
What the heck is going on?? This happened all of a sudden after a race last weekend and I am clueless! Any idea??

[Ericthered rdr]

Originally posted by kc 300EX
Ok, my KFX starts fine, every time. I let it warm up, every time. All of a sudden when I try to rev it in neutral it bogs and back fires and I can't get it to rev. As soon as I put it into gear, even if I dont move, this stops and it revs fine, but still will not rev in neutral.
What the heck is going on?? This happened all of a sudden after a race last weekend and I am clueless! Any idea??

I saw a very similar post to this on Z400central.com. The guy wond up having to adjust his reverse cable and everything was fine. I am not saying this is your problem but it is worth taking a look at. The only thing that is going to limit the revs is the high rpm limit and the reverse limiter. Good luck and let us know what you find.

[250rmike]

I HAD THE SAME PROBLEM AND WHEN I LOOKED DOWN THE CHOKE WAS SLIGHTLY ON MIGHT TRY THAT KINDA DUMB BUT DUMB THINGS SEEM TO BE THE REASON FOR ALOT OF STUFF

[250rmike]

sorry didnt realize i had caps on

[Syrus]

Originally posted by 250rmike
sorry didnt realize i had caps on

lmao..

[Billdog350]

Sounds like something related to the reverse rev limiter....possibly the neutral and reverse wires are shorted together or the cable/switch is not adjusted or working correctly. The backfiring and revving sound like the reverse rev limiter. Does it do the same thing when you're in reverse?

[atvridernc]

yeah my friends z started doin that after a race when he broke his battery cable.

[Jdeiter]

thats because you have a neutral and reverse rev limiter on the quad..

http://www.z400central.com/invision/...hl=reverse+rev

do that mod and you'll be good to go