underpowered
08-28-2008, 08:07 PM
so, after junking my old cylinder head i got a new one.
My old head was Ported an polished.
My total setup is JE 11:1 88mm(426) piston, HMF slip on, FCR 41 carb. new head is bone stock. stock valves, no porting.
old jetting was 180 main. looking for a starting point for going from ported back to non ported. how much should i go down? i put the carb and head on together so i have never ran this carb on a stock head so i am not sure where to start exactly.
My old head was Ported an polished.
My total setup is JE 11:1 88mm(426) piston, HMF slip on, FCR 41 carb. new head is bone stock. stock valves, no porting.
old jetting was 180 main. looking for a starting point for going from ported back to non ported. how much should i go down? i put the carb and head on together so i have never ran this carb on a stock head so i am not sure where to start exactly.