Re: Use synthetic oil for new 66cc engine break in?
I just did as i was told this is my first motorized bicycle i used synthetic i got at home depot and mixed it 16-1 for the break in and i will be going to 25-1 after that. as stated in the instructions. what kind of ratios do you guys use on your bikes?
Last edited by hotrodbrothers; 09-09-2009 at 11:45 AM.