Engine brake backfire

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Jun 20, 2012 | 01:50 PM

tchyclutch7

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Engine brake backfire

So I've noticed the last couple of times riding when I get up to about 9k then engine brake, around 5k I get a loud backfire. And it hesitates pulling from a stop. Fuel regulator?

Jun 21, 2012 | 02:22 PM

tchyclutch7

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No ideas?

Jun 21, 2012 | 02:51 PM

bobobob

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Mine gives a loud pop at around 5k too, also when upshifting at that point.
Doesnt hesitate though...

Jun 21, 2012 | 08:33 PM

An01InAZ

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From: Chandler,AZ

Mine pops when I let off too. Its an aftermarket pipe. It doesn't bother me tho. But I replaced the FPR awhile ago

Jun 21, 2012 | 11:52 PM

tchyclutch7

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Ok. Mine has a two bros slip on that is gutted and only about 8 inches long. Maybe I just didn't notice it before when it was quiet. Thanks guys

Jun 26, 2012 | 12:15 AM

mnguyen84

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From: CA, USA

are you sure it's a backfire sound, or do you just hear popping noise in the muffle that is caused by un-burnt fuel igniting in the exhaust?

Jun 26, 2012 | 01:59 PM

tchyclutch7

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That's kind of where I was going with this. That's y I thought fuel regulator pushing too much fuel and not burning it all up?

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