bansman76 Posted December 12, 2011 Report Share Posted December 12, 2011 hey guys. just needing some opions on winter jetting. here is my mods - pro circuit pipes and silencers +4 timing .30 over wiseco pistons stock porting new stock stroke crank stock reeds stock head toomey 2 into 1 air filter (no airbox at all) current jetting is stock pilots, middle clip on needle, 300 mains runs good now but wanting to be safe for winter. all opions appreciated .thanks 925 ft elevation at my house. up to 3500 feet in elevation where i usually ride . Quote Link to comment Share on other sites More sharing options...
ginger Posted December 12, 2011 Report Share Posted December 12, 2011 roughly for every 20 degree in temp change, change by one jet size. Quote Link to comment Share on other sites More sharing options...
94Mike Posted December 13, 2011 Report Share Posted December 13, 2011 Do you just up the mains or do you do anything else? Like needle position, pilot, etc? Quote Link to comment Share on other sites More sharing options...
ginger Posted December 13, 2011 Report Share Posted December 13, 2011 i just did the mains. Quote Link to comment Share on other sites More sharing options...
94Mike Posted December 13, 2011 Report Share Posted December 13, 2011 Alright thanks. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted December 14, 2011 Report Share Posted December 14, 2011 Probably have to go up 2-3 sizes on the main IF you were jetted perfect before. You need to jet where you ride, a few thousand feet from your house is quite a difference in jetting. It might be crisp at your house but blubbery where you ride, or worse...crisp where you ride but lean at your house. You might have to richen up the air screw 1/4 to 3/4 turn, if it starts and idles poorly even after warmed up and off the chokes...richen it up by turning each air screw in 1/4 turn until it clears up and runs strong. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.