borley1863

Hi i usualy run my engines (Zenoah) on 32/1 oil ratio, but i have never had to break a new engine in, should i use 25/1 as it has more oil?
the markings on my mix bottle are 50/1, 40/1,32/1 and 25/1 so any other measurements i won`t be able to do, as i saw someone mention they were running 36/1 or some weird number.
Oh and it`s a CY29cc with billet head
Thanks
Guy

nothinbetr2do

i would run it at 25/1 for atleast the first tank

fourwheeler

I have been running 25-1 in mine since it was new.

Nitro Fumes

Here is a link to an article that explains why you shouldn't change the gas/oil ratio in your 2-stroke. Just leave it at 25:1.

http://dirtbike.off-road.com/dirtbik....jsp?id=400487

bsrman14

Break it in with 25:1 then switch to 32:1. i had problems after 2 gallons of 25:1 it wouldn't run right.