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Backfiring off of full throttle

  • Thread starter Thread starter akreider
  • Start date Start date
A

akreider

Guest
My bike is backfiring after I let off of the throttle opened wide. Is this just a matter of changing the main jet to lean it out a bit to prevent unburnt fuel being ignited in the headers?
 
try running some injector cleaner in a tank of gas. sounds like you mabe getting ready for a carb cleaning.
 
My carbs are dialed in but I have aftermarket pipes and I get a few small pops on decal especially after gunning it. But it is a lean condition if all the neighborhood dogs are running for the hills. How is it running otherwise, I know you've been struggling to get it jetted properly.
 
back fire

back fire

check for tite heder bolts or manifold leak or re jet
 
akreider said:
My bike is backfiring after I let off of the throttle opened wide. Is this just a matter of changing the main jet to lean it out a bit to prevent unburnt fuel being ignited in the headers?
Click to expand...
If you're talking about typical decel' pop, it's not your main jets. Closed/nearly closed throttle positions would be the pilot ciruit. Try adjusting the mixture screws out a little more. If no joy by about 3 or 4 turns (for pipe/pod mods) then you need a larger pilot jet. 2 turns out is usually enough if the bike is stock.
This assumes the carbs are clean, synched and the exhaust isn't leaking.
 
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