Sorry to ask, but my riding partner bought a new KTM 380 EXC and it runs really rich on the bottom, fouls plugs left and right, its all stock and we are riding in less than 1000ft elevation. DO I need to rejet or can the fuel/air screw solve this problem. Also he moved his clip down to third position but wont that only lean out the top. Nothing like owning a new bike that wont run. GOOD THING I OWN BLUE, it starts everytime.