Re: What spark plug for my 80/66cc engine?
i bought a bronco racerand had to wait 3 weeks for my high performance head to come in. well when it did come in i called and asked if the spark plug that came with it would fit my new head. they said yes ... WELL IT DIDNT !!!!! piston slapped the plug many many times looks like i may be out a motor cuz where i got it from they are acting like im lying about what haoppened they said it is impossible for the piston to hit that plug. I BEG TO DIFFER CUZ IT HAPPENED