RE: ZEnoah G-62
I believe that there is something else going on here. In the original post the Op states that the engine has the old style mechanical timing advance.. A Zenoha has no mechanical advance.. i know that C&H made Electronic conversions . But these only replaced the mag coil and the flywheel. No mechanical advance, I'm Betting that this is not a G-62. Post a picture or two. Not claiming to know it all, ive just never seen a G-62 with a mechanical timing system. I'll bet it's in the ignition system.