- Oct 30, 2018
So, I'm cruising (not far from home) today after putting on a better clutch lever (The kit lever broke) and suddenly there's a very wrong noise from my HT motor. I check everything drivetrainwise that could hurt me, and then head home. I pulled my plug and it looked like maybe the piston had just kissed the end of the plug electrode, so I pulled it off and took down the top end. I'd been meaning to do this anyway to see what kind of rod and piston were in this engine anyway. I found nothing wrong. While I had the jug off, I got my Dremel out and cleaned up the transfer ports which were ugly, ugly, ugly from the factory, and put it all back together. I had noted a crack earlier in my clutch cover. I'm pretty sure this was the source of the noise. A chunk of aluminum had broken off the edge and fallen down into the gears. And there were crushed aluminum shavings all in there. I blew it out with lot of air and regreased the gears. No troubles now. The minor work I did on the transfer ports had no discernible effect on how the engine runs.