Re: How to know when broken in? Fuel ratios?
Sad thing is no matter how carefully you baby it. It will fail at the worst time, and for no apparent rhyme or reason. With their poor construction and outdated design these little engines require an inordinate amount of care and tinkering and despite one's best efforts, are doomed to fail. My No. 1 rule? Never ride any further than you're prepared to pedal back.