88250RGuy
07-26-2011, 03:17 PM
I am almost ready to fire up my trx250r I baught at the start of the month...I need a place to start at regarding jetting though. Stock was a #158, In the carb has a #148. Its the stock PJ34mm carb. Bike has fmf gold series fatty expansion chamber and powercore 2 silencer, No airbox lid, reed spacer and mild motox port. And a ct racing cylender I found out. Should I start out at stock and go up for the main? how about pilot? How do I correctly jet it? Buy a bunch of proper plugs, run it down a road let it cool and check the plug colour? Thanks this is new to me