Re: Do slant heads really make a difference in power?
That paper label is on all the motors I got from Zoom... even the 50cc. Why they would put a 80cc label on 50cc bike is beyond me. The other way around is much better.
last year they were riveting 67cc metal tags to all the bikes. It was a pain to drill them out and fill the holes. I guess the paper ones are an improvement over that.
I'd really like to get a handle on this dome vs flat piston issue. Is it random or is there any way to guarantee one type. Maybe email Zoom.
I also wonder if you can see the 2 or the 5 or make out the shape through the plug hole. Taking engines completely apart loses it's appeal after the first 5 or 10.