Reply to thread

Message: [QUOTE="FruDaddy, post: 1001775, member: 63076"] There is less oxygen up there, therefore less fuel is needed. I know that the needle shouldn't affect WOT, but the PW50 is a little wierd at times. Even the mix screw can cause it to run wrong up there. I referenced this chart for the correction factors to get proper main jet size. Athough I only estimated, and didn't take temperature into consideration. [img]http://www.motocross.com/motoprof/moto/mcycle/carb101/correction.gif[/img] [url="http://www.motocross.com/motoprof/moto/mcycle/carb101/carb101.html"]http://www.motocross.com/motoprof/moto/mcycle/carb101/carb101.html[/url] [/QUOTE]