Ok. Hi. I am new to this forum. I am also new to the whole scooter world but I thought I would give it a try. I have a Kymco Super 9 AC SF10E. I put a 70 cc big bore kit, technigas exhaust, 19 mm arreche carb, and a pod air filter. I got rid of the oil injection system. Manual choke. Naraku racing coil. Currently #95 main jet and a #20 slow jet. I am having problems. I was able to get it started and drove for about 10 minutes. I was trying to get it warm, break it in, get to idle so I could adjust idle and idle/air. It did idle though it was set high. I brought the idle down, it shut off. I haven't been able to get this thing started back up since. I am also hearing a loud ping or bang like someone's throwing a rock or metal ball at the block. This sound occurs after trying to kick start the motor about 5 to 10 times. The bike ran great when I took it around the block. I ran at half throttle to about 3/4 throttle and a short time at wot. I'm baffle and hoping that something is not damaged in the crank case. Any advise would be great, what do I look for?
