About a month and a half ago I installed the Kstar 70cc Treat Kit on my E50. I thought that I had did the proper breakin by doing plug chops and running a little rich. I am also running a Dellorto SHA 15mm carb 66 jet. A few days before the Richmond Rally I took off the stock SHA air filter and replaced with pany hose and put the stock black airbox back on. It did run better and I upjetted to 10 but it seemed way too rich so I went back to a 66 jet.
So on friday we travel to Richmond with the ped in the truck. I take it out of the truck and try to start it, but I am not able to start and am getting alot of head pinging. Found out that my head bolts had come loose since my friends ped pedals had been banging up against it during transit and this loosened the head. Tightened up the head bolts and 2 were stripped but it started.
Well Friday nights ride at the rally it was running excellent. I was even able to do a little blasting at times. Then it rained at the slip and slide party and while we are riding back from the party it is hesitating/sputtering and pinging at high speeds. So in the morning on saturday before the ride I retighten the head bolts but was still hesitating at higher speeds. I said Fuck it and rode to the rally. During the rally it was doing the same thing, but starting to get worse the further along the rally got. I just wanted to finish and found myself at the back of the pack multiple times. When we would stop and I would cut off my bike and then when we went to go again the was very poor acceleration, but it would get better with time. Well I finished the rally and packed the ped up. I take the E50 apart and find that the piston ring is now stuck in the piston and it looks like I was getting alot of blowBy. Piston has alot of black on the top and I probably have less than 200 miles on this kit. I just ordered the replacement piston and rings from treats, but I do not want this to happen again. I have assembled a new case with good head bolts and nuts. Here are some pictures. What was I doing wrong?