Hello I absolutely need help with my jetty and that’s what I changed the cylinder because I got rusted at the exhaust the screw and then broke off until then my jetty 80 now ran throttled to 55 everything neatly built together engine in the stand allowed to run warm (about 20 min) let cool down put me on to drive in … slowly accelerated to about 40 kmh standing at a cross and zack nix went more gas given he performs about 10 kmh and did not want faster then have i ch full gas given to see what’s going on … detonations at full gas and at low gas it goes from exclusion I can carburetor, air filter( false air) then yesterday took off the battery because a colleague thought could be the e choke (in the cold condition he rides up to 55 kmh yesterday tested and as soon as you have braked and he is warm he does not come from the spot And since my question had or has someone the same problem and can help me? Km stood from the scooter s ind exactly 5077km so hardly anything went …