09 600rr exhaust backfire? - 600RR.net
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post #1 of 2 (permalink) Old 05-13-2018, 10:34 PM Thread Starter
Knee Dragger
 
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09 600rr exhaust backfire?

is it possible to get the exhaust to backfire i love how that sounds when it pops when u let off the gas.. but my bike doesn’t do that.. i only have an akrapovic slip on
my friends ninja 300 backfires so much it sounds nice why does it do that?
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post #2 of 2 (permalink) Old 05-13-2018, 11:46 PM
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Quote:
Originally Posted by eddie7978 View Post
is it possible to get the exhaust to backfire i love how that sounds when it pops when u let off the gas.. but my bike doesn’t do that.. i only have an akrapovic slip on
my friends ninja 300 backfires so much it sounds nice why does it do that?
I'm not a tuner, but I believe that the backfire (actually it's called afterfire), is BAD. It means you are running lean, i.e. too much air and not enough gas, and leads to inconstant detonation in the cylinders, which leads to pitting and excessive heat. Not to mention running lean generally means a decrease in BHP.

Sounds cool, but yeah, it's bad.

Don't get afterfire confused with exhaust burble on deceleration. Burbling is OK, and is a result of pressure differences in and outside of the exhaust. Shorty exhausts tend to burble a lot. Take what I say with a grain of salt, it's only what I've read, and experienced - again, <<< not a tuner ;).

Last edited by Axel Nut; 05-13-2018 at 11:51 PM.
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