Dave Sisk wrote on 07/09/12 at 08:02:08:RanDaMan wrote on 07/09/12 at 06:32:02:So I tried letting out the clutch a little bit on shut down and it still let out a mean bang! :'( ! Maybe I didnt let it out enough? Im going to have to look into a new muffler i suppose!
"A new muffler won't make the shutdown back-fire go away by itself."
"the carb spacer mod...that eliminates the backfiring for most people"
"Mine backfires occasionally on decel ... and sometimes on shutoff...the backfiring on decel can get a little annoying, but I can live with it...I don't care too much if mine backfires on shutoff.

Cheers,
Dave
I Really appreciate the info Dave! A couple questions though!
(first quote)- So it is possible to completely rid the bike of the shutdown back fire?
(second) - I assume youre talking about the "The White Spacer Mod"? and eliminates the shut down backfire or operating backfires?

(third) - Mine was backfiring on hard decel as well untill i adjusting the fuel mixter screw under the brass plug.(2-1/4 turns out) Now it has zero backfiring on decel or any other operating conditions but NEVER fails to let out a big bang on shut down.