jmutiger Posted July 10, 2015 Report Share Posted July 10, 2015 Hi guys, I was wondering what others with the same bike have done jetting wise to clean up the power delivery? I ride between 500ft - 5000, probably mostly around 2500ft. But I'll tune as needed just want to know if there is a hot setup I should know about before starting the annoying procedure of airbox removal. Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted July 10, 2015 Report Share Posted July 10, 2015 Mine also runs very well.I fitted a low compression head insert which speed pinking and aided high revs. Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted July 10, 2015 Report Share Posted July 10, 2015 Don't mean to hijack the thread but can I ask where you had the insert from? Also did it make much of a difference? Im sorry ...i get the most irrelevant post of the year award . I thought this was the JTG forum . sorryyyyyyyy Quote Link to comment Share on other sites More sharing options...
copemech Posted July 11, 2015 Report Share Posted July 11, 2015 Hi guys, I was wondering what others with the same bike have done jetting wise to clean up the power delivery? I ride between 500ft - 5000, probably mostly around 2500ft. But I'll tune as needed just want to know if there is a hot setup I should know about before starting the annoying procedure of airbox removal. Standard Kiehin sea level jetting is 45/125 range. I would not normally expect changes needed below 3000 ft. other than airscrew adjustment. Ck to see what you have in there first! At higher altitudes, things can get a bit different, so a change to say a 48/50 pilot may be a good tradeoff for you, yet a lot of this may vary bike to bike even, and with that wide range of altitude you may have to find the balance. Quote Link to comment Share on other sites More sharing options...
jmutiger Posted July 11, 2015 Author Report Share Posted July 11, 2015 I thought you'd run leaner jetting if you ride higher.. Your suggesting richer jetting at altitude which doesn't seem normal to me. Quote Link to comment Share on other sites More sharing options...
copemech Posted July 11, 2015 Report Share Posted July 11, 2015 I thought you'd run leaner jetting if you ride higher.. Your suggesting richer jetting at altitude which doesn't seem normal to me. Seems bass akwards but it all has to do with decreased air density and the ability to suck in fuel. Quote Link to comment Share on other sites More sharing options...
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