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Vintage exhaust popping

C

Cam3512

Tuned and Synch'ed
Joined
Jun 25, 2009
Messages
69
Location
Manahawkin, NJ
2009 Vintage with GuzziTech crossover, FBF open airbox, Mistral mufflers, PCIII usb and Dyno tuned by FBF. Still pops on decel, especially when engine is doing some braking. Seemed to have gone away after PC install, but came back after about 800 miles. Still does it after the Dyno run. Anything else I can do to eliminate the fireworks?

Cam
 
Popping on decel often indicates an air leak in the air-fuel system, although this would be odd on your new bike. If you want to hunt down an air leak, smear dishwashing liquid (or some other non-flammable viscous fluid) around joins, shafts, etc on the intake side of the air-fuel system and check for bubbling while the engine is running.
 
time to tighten up all your exhaust clamps and check for the tell tale black soot by the joints
 
Cam, if you'll send me the map, I'll make the revisions. Todd at GuzziTech.com
 
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