Scadigan Posted May 13, 2010 Share Posted May 13, 2010 im buying a yoshi rs2 comp slip on for my 06 crf450 and am also replacing the stock air filter with a twin air filter and was wondering am i going to need to re jet my bike? Quote Link to comment Share on other sites More sharing options...
Noozeyeguy Posted May 13, 2010 Share Posted May 13, 2010 (edited) Yes. You're getting more air into the motor (new airbox) and allowing exhaust to escape more efficiently (new pipe), all of which adds up to a very lean condition. You'll burn the piston if you don't rejet. Edited May 13, 2010 by Noozeyeguy Quote Link to comment Share on other sites More sharing options...
Jakster884 Posted May 13, 2010 Share Posted May 13, 2010 Your pipe should come with the jetting info on a separate sheet. But yes absolutely you need to really jet Quote Link to comment Share on other sites More sharing options...
Scadigan Posted May 13, 2010 Author Share Posted May 13, 2010 alright thanks Quote Link to comment Share on other sites More sharing options...
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