SergeyPRKL

Hi I'm new with 2stroke engines AND with Yamaha, and i have a small problem. DT doesn't start with kickstart but it starts when pushing 10-20 yards with gear2. Then it runs perfectly... When hot, idlerunning is impossible. When letting throttle off, revs doesn't go below 3000rpm, it goes down to 1000 if i let it go a while with 3000 and then revving to 4-6000rpm, then it drops to normal idle, but stalls after about 15 secs. Carb is orginal Mikuni28 with 270 mainjet, and it is 18kW mode with no restrictions and 90% working YPVS(too long wires).