Need help/ advice

[fruehjames]

My blaster started bogging down at high rpms and with the help from the forum members I believe it is the jetting. Where I live and ride im at about 3500 to 4000 ft elevation, where I bought it about two months ago was at sea level. The bike is stock except for full fmf exhaust and the current jetting is 240. Is the elevation probably the reason for the jetting issue and bogging out at high rpms? Any suggestions on what jetting I should run at this elevation i believe the bike is running rich because of the elevation.

 

[phragle]

with the elevation I would hazzard a guess that your fat. read the plug, get an egt, or if you feel totaly lazy, remove the airbox lid and take it for a ride. (if its fat this should help, if its lean..it could be ugly...

The right way would be to do a leakdown test and a compression test to make sure everything is perfect, then do a 1/4 throttle, half throttle, and full throttle egt runs.