EFFIN BACKFIRE...WON'T IDLE IF CHOKE IS OFF!

RaptorJet · 05-31-2009, 09:37 PM

This effer starts right up and runs/idles strong after warm up BUT the choke has to be half on? Also, when you hit the throttle it sounds like its gonna stall and sputters until you let off the throttle....I got awesome compression...timing is on...but if you turn the choke off it won't idle and dies...Help!!!!!!? Could it be the reverse rev limiter...my reverse light blinks when you rev it to much...Help!!!!???

Swansonator · 05-31-2009, 11:45 PM

Reverse light flashes when engine is reved for an extended period of time in neutral. Could als be the park brake switch/park brake rev limiter.

**phucker** · 05-31-2009, 11:55 PM

if it has to run with the choke on it is probably one of your float needles is stuck. crack the drains at the bottom of each carb and let each one flow at least a cup of fuel out of it. if it doesnt freely flow fuel you have a clogged needle and seat. take apart and clean very well.

raiiniinqxblo0d · 06-17-2009, 07:20 AM

hey this is gonna sound retarded...but mine did the same crap once and it was just low on fuel

**phucker** · 06-18-2009, 09:16 PM

haha, if that happened to me only the quad and i would know about it

raiiniinqxblo0d · 06-19-2009, 07:22 AM

lmao, hey cant win'em all, i was pissed and confused as to what was going on and after 2 days of fighting i called the dealer to see what i could get out of it haha when i went to load it i flipped it to the reserve tank and BOOYA

ctraptorken · 07-03-2009, 11:36 AM

I would check the idle jet and disconnect the reverse rev limiter

Quadmaniac · 07-08-2009, 03:52 PM

Also check the carb to intake manifold boots for loose mounting and or cracks.

fast450xc · 07-08-2009, 10:10 PM

sound like plugged pilot or water inthe gas pull the carbs but first try new spark plug

Quadmaniac · 07-11-2009, 04:45 PM

Check the boots between the carbs and intake manifold. Make sure they are well seated, clamps are tight and there are no cracks or leaks. You can spray carb cleaner around them at idle to find leaks. If idle speed changes while spraying, you have proof.

dustin42069 · 07-16-2009, 10:27 PM

Quote: Originally Posted by RaptorJet

This effer starts right up and runs/idles strong after warm up BUT the choke has to be half on? Also, when you hit the throttle it sounds like its gonna stall and sputters until you let off the throttle....I got awesome compression...timing is on...but if you turn the choke off it won't idle and dies...Help!!!!!!? Could it be the reverse rev limiter...my reverse light blinks when you rev it to much...Help!!!!???

take your carbs apart clean them, if that doesn't work get a rebuild kit. the kit fixed mine.