I just put a Puch high compression head on my 01 Tomos sprint. I was going about 40, and had been for a while, when the engine shut off and the bike came to a QUICK stop.
I was afraid it had seized so I kicked it over slowly, the engine turned over fine, with no noise, and good compression. I kicked hard this time and it started. I rode for another 10 min and it happened again. After that I rode straight home.
What could be causing this, I’m stumped. Once the bike is cool I’ll take the head off and look for damage.