This 62 cc polini built right by Graham has been a nice mild ride. Cheeta even buffed it up for me a bit. I've always let it run rich and borderline fourstroking and happy in the twenties with quick pickup for fun pub runs. Anyway I've noticed pooled two stroke oil that I've thought was a known fuel line leak. Then suddenly the engine begins to rev up way way higher than I ever hitherfore had the "luck" to get on this engine. Wow ...now my headlight blows! Plus I wanted to change the rear pulley assembly. Treats mailing a new petcock etc well I pulled out the plug to get a piston stock I there and voila !!
My guess.....base gasket disintegrated !!
I can't get to a leakdown until next week but that's my guess.