Needle jet on a built motor

envd247

New Member
May 26, 2010
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Hey guys whats up?I have a 01 blaster that i got ported,polished bored to a 68mm with a reed set and pro circuit pipe with filter.Anyone have any ideas on what size main jet to use to start tuning the jetting.Its also got a stock carb on it and i run at elevations from 300 -3300ft cause im in calif so we have sand dunes and desert in all directions from where i live.the dunes are 300-600ft and the desert i go in is 2000-3300ft.Any help would be appreciated.Thank you