fuel/oil ratio for a 420

[Dave Withrow]

Hi guys,
    I've been thinking of running an '80 420 this year.  I've been running a mix of Golden spectro/gas at 42 to 1 in my other Pentons with no problems.  Any suggestions?  Mike L, what do you run in your's?

 

[Mike Lenz]

I run Maxama Super M in all my bikes at about 32-35 to one.

 

[Russ B]

My owner's manual says 50:1 !!!!! I mixed 927 at 40:1 with unleaded premium and it runs fine.