Exhaust Backfire Flames - Yamaha R1 Forum: YZF-R1 Forums
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post #1 of 12 (permalink) Old 10-07-2018, 05:52 PM Thread Starter
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Exhaust Backfire Flames

I have a 2008 R1 with a Graves slip on dual exhaust and occasionally at night time i can notice a flame coming out of the exhaust when it backfires and sometimes when i rev it to the limiter. It does not bother me but besides remapping the ecu is there any other way to fix this an/or is it potentially harmful to the bike?
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post #2 of 12 (permalink) Old 10-07-2018, 06:30 PM
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Block off plates and a good tune on the dyno from a professional tuner.


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post #3 of 12 (permalink) Old 10-07-2018, 08:23 PM
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hitting the limiter will always do that and the backfire if its on deceleration is a lean pop it happens and its a normal condition that will not do any harm.
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post #4 of 12 (permalink) Old 03-19-2019, 12:30 PM
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Block off plates and a good tune on the dyno from a professional tuner.
If you want to get rid of it, then do this ^^^
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post #5 of 12 (permalink) Old 03-19-2019, 01:49 PM
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Dont they sell a flame suppresor for it? I know two brothers does. It eliminates the spark. Check their website.
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post #6 of 12 (permalink) Old 03-19-2019, 01:52 PM
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Dont they sell a flame suppresor for it? I know two brothers does. It eliminates the spark. Check their website.


Wait....canít tell if serious


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post #7 of 12 (permalink) Old 03-19-2019, 02:49 PM
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Wait....canít tell if serious


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I was serious. Correct me if im wrong....see below

https://www.summitracing.com/parts/t...CABEgJA3vD_BwE
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post #8 of 12 (permalink) Old 03-19-2019, 03:56 PM
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I was serious. Correct me if im wrong....see below



https://www.summitracing.com/parts/t...CABEgJA3vD_BwE


Thatís not a solution, thatís a band aid.


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post #9 of 12 (permalink) Old 03-19-2019, 04:49 PM
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Thatís not a solution, thatís a band aid.


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Alright there point dexter.
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post #10 of 12 (permalink) Old 03-19-2019, 10:05 PM
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Alright there point dexter.


Logical response


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post #11 of 12 (permalink) Old 03-20-2019, 09:22 AM
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Logical response


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touche
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post #12 of 12 (permalink) Old 03-20-2019, 03:54 PM
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Where I live, a backfire could cause a devastating wildfire. On the night of October 8th at 8:45pm, the Tubbs fire broke out. 7,000 structures, mostly homes, were destroyed in less than 5 hours. 3,200 homes destroyed in Santa Rosa.







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