I know there are similar post out there, But i was riding this evening and happen to notice my head pipe was glowing red. I had the hrc cam installed today, other that that i have a K&N with no lid and a sparks pipe I am running a 185 main here in Oklahoma. I know the glow is a sign of being lean. I was just wondering what size jet i should run.

 

Raise the lowend jetting. Go out on the air screw, and or get a 50 pilot jet.

 

if it was glowing at idle, get a larger pilot jet or turn the fuel screw out some. if it was glowing while cruising, i would lower the needle clip. also, honda does call this normal so your jetting may not be much off.