Help dear motor-talk community We bought our daughter a used Suzuki Katana AY50 R, which I then also transferred 70km to home. I then throttled him with two rings in the Vario on 25, drove and solemnly handed over to our little one. One day later the scooter then died on a mountain ( jerking, misfires.. from ) . However, this mountain is before two times without problems up and down. I then got out the throttle again, L aftfilter and spark plug cleaned, as well as the petrol filter (very dirty by porous petrol hose ) I did not dare to inject myself … at the test drive 30km no problems again … then three std later he went out again on the mountain ( stutter, misignition, goes bad and runs somehow too fat ) then turned it over and let it run for five minutes under full throttle , afterwards he drove again impeccable . My problem is that the two wheel screwdrivers here on the country have no time in the next weeks and so you are my last hope I would like to send my daughter back without worrying thanks