Okay, I know there are about a zillion and a half threads on here about backfiring and popping when letting off the throttle, but I'm getting frustrated.
When I had the stock "punched out" exhaust with the Arlen Ness Big Sucker I was able to tune the PC III and get rid of the problem. I just recently installed Cobra Speedster Slashdowns. I've tried every map available on the Power Commander website for the VN 900 and tried tweaking it myself, but just can't get rid of the back fire.
It happens when I accelerate and then let off the throttle. If I roll off it rather than release it, its better, but still there.
I know I should get it dyno tuned, but the wife is threatening to castrate me if I spend anymore more money on the bike right now.
My question is - does anyone have the same setup as I do and have a map for the PCIII that got rid of this annoying problem?
My setup is
07 VN900 Custom
Arlen Ness Big Sucker Intake (I think the BAK is probably close enough to be the same)
Cobra Speedster Slashdowns
Power Commander III
And I've already marbled it.
Thanks so much to anyone that can help.