how many ozs of oil should i put in 50cc engine per gallon?(motor is all stock)

 

That depends on what the recommended ratio is. Generally speaking 40-1 is what I mix all my 2-stroke gas at. 40-1 = 2.8oz/per gallon.

 

For our Pred-90, I mix 32:1 and tweak based on spark plug readings. Currently, I'm mixing at 34:1. Most start at 32:1 and tweak from there.


To learn more about spark plug readings, surf:

http://www.exriders.com/techarticles/sparkcolors.html

http://www.motocross.com/motoprof/mo...lug2/plug2.htm

Hope this helps....

.

 

but how many ozs per gallon = 32.1? thanks for your help

 

4oz per gallon.