Re: what did you do to your motorized bicycle today?
Well I pulled the head today...
After more than 2800 miles, the cylinder walls themselves look pristine... The crosshatching done in China looks untouched... Top of piston and combustion chamber are filthy and coated in carbon of course, as I just can't seem to lean it out. Once I've got a second base gasket in hand, I'll pull the jug and clean up the casting slag in the exhaust port. The slag is reducing the port size by approximately 30%, and I believe it to be the cause of my over rich issues.