To Hot

[SnowFlake]

I out a 150 main jet in my stock set up besides a twin airfilter and i start it up and run around my house a few times. i noticed it was really hot for that short amount of time if riding. I pulled the plug and it was a dry black color, im guessing its lean. But how could it be lean with that high of a jet. and if you ahve to much oil in yor engine could that make it run hot.

-snowflake

[cals400ex]

a black plug definately isn't a lean conditon. i have a feeling it was just in your head that it is running hotter than normal. these air cooled bikes do get warm.

[SnowFlake]

That could be the case cause i have not ran it in 2 months

[SnowFlake]

Anybody else ahve input

[Quadzilla]

Get a fresh plug and try it again. Don't use race gas to do testing because it's hard to get a good read on a plug with a short amount of riding. Pump gas is better for reading plugs with little time on them....