Can I still run on pump gas with a JE 10.8-1 compression piston [Archive]

frogburner

12-15-2002, 08:44 AM

I was wondering if I use the 86MM JE piston w/10.8 to 1 comp. if I could still run on pump gas??

4TraxRider

12-15-2002, 08:46 AM

i'm pretty sure it can, just use super premium.

frogburner

12-15-2002, 08:49 AM

I just read that stock compression is 9.1:1 and was wondering if pump gas was still possible with a 406(86MM) 10.8:1 piston.. Didnt really know

MR. HONDA EX'S

12-15-2002, 09:07 AM

Run no less then 93 in it.

12-15-2002, 09:13 AM

It'll run just fine with pump gas, but if you ever bump it to 11:1 start using racegas/ pump mix

OutlawEX

12-15-2002, 11:14 AM

when i had my 400ex motor ,i had a 11:1 and it would run great on 93 premeium...But if i went to 92 it ran like poop..