RB-Designs Head Mod - Older KDX?

[placelast]

I've a '90 engine, and was wondering if his head mod is applicable or not. Jeff Fredette says not to as his requires race fuel - I want to stay with premium pump. Ron (RB) hasn't answered my two e-mail messages, therefore I assume he must be busy or out of the area.

Any of you with a '89-'94 have his head mod?

 

[m0rie]

I think Wibby has it on his 92. Living down around sea level like you do I don't know that i'd worry too much about getting it done, seems to be a common mod though for the people who ride at elevation.

-Maurice

 

[wibby]

Yeah, I had mine done, runs fine on pump gas

Can't tell for sure what it did for me though since I did the carb mod at the same time

 

[shr]

placelast

Didn't get your e-mails..... try, [email protected]

You are right about FRP head mods needing race fuel.