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Old 07-31-2012, 11:26 AM
zeeohsix zeeohsix is offline
Motorized Bicycle Newbie
Join Date: Jul 2012
Location: Long Island, NY
Posts: 11
Default Re: Hi from MAINE. How far/long is safe to ride 2 stroke before resting motor???

Originally Posted by wayne z View Post
The 16 -20:1 mix was the old school mix when we didn't have modern 2 stroke oils and we used non detergent 30weight. The China directions are mostly to cover their arses. Hard to seize one with that much oil, even if the fuel mixture is a little lean.

A good safe mix with air cooled non syntetic oil is 40:1. The ultralight guys get as much as 1200 hours on their engines with 50:1 aircooled oil, and they run them nearly WOT continuosly. I have been using 50:1 in everything 2 stroke I own for the last 20 years. Never had any failures from lack of lube.
40:1 with non synthetic...I've been using 2 Stroke smokeless semi-synthetic from AutoZone. Is 40:1 still a safe mix with semi-synthetic?
Due to inflation, your two cents no longer matter.

Current project: OCC Chopper, plans:

-Briggs & Stratton 5 HP 4 stroke, electric start
-Smog pump supercharger
-disc brake conversion
-tachometer & boost gauge

1976 Columbia Gold Crest (Stingray knock-off), 80cc Chinese 2 Stroke. Custom intake manifold, engine mounts, rim brake, digital tachometer. Stock front tire & larger back wheel with wide street tire.
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