it's your map on your pcv. need to find a more well tuned map, and possibly the auto tuner might fix it as well. i dont know exactly how well the auto tune for the pcv works, but that's a place to start.

 

I believe it's running to lean. You need a better map or have it tuned by someone.

 

I may be wrong on this, but I believe that it would be running too rich if its backfiring. The extra fuel pumped into the cylinders makes its way into the exhaust pipe and explodes..

 

Update

Hello Team:

Went for a long ride (200+ miles), remove the top cover for the air filter but still popping when I roll off the gas. Put the top back and still the same.

Today I used a map sent by fuelmoto. I think the bike felt more responsive with the first map from Dyno jet (15-006-014) but the popping was the same. Is not as loud as backfiring, is just the popping sound on deceleration.

Thanks for all the advice.

 

Update

Team:

Kudos to EOD J ROD, after making the changes he suggested, no more popping on decel. the TAB slip-ons even sound different, perhaps is my imagination? Anyway EOD J ROD nail the problem. I made the changes on the Dyno jet map: 15-006-014.

:notworth:

I'm becoming a premium member of this site. I have learn some much about my new bike! :cheers:

Thank you very much for all the advice!

 

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