Leo Vince Titanium backfiring problem

gapek · Mar 30, 2009

I’ve installed Leo Vince Titanium on my F800S, I looks great and the sound is terrific, IMHO much better that Akrapovic. Throttle response is also much agile and perky. Overall, muffler is great, but…

I’ve noticed one problem, when I slow down with engine braking it backfires a lot, no matter what gear I’m using. Does anyone have similar observations, is it normal?!

papasong · Mar 30, 2009

I get this occasionally, too. But I have the stock can...

Xfaty · Mar 30, 2009

Normal. It's got something to do with air being sucked into the exhaust between engine pulses on a twin cylinder engine I think. Harleys are really bad for that.

Darren J · Mar 30, 2009

Take off your airbox cover. Looking at the top of the airbox on the right hand side you'll see an electrical connector feeding a solenoid with a rubber hose leading down to the valve cover.That's the air injection for the exhaust system. Pull the connector off and go for a spin. If it reduces the backfiring leave it off.

Leo Vince Titanium backfiring problem

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