Hey, am a mechanic, and I have the KTM 250 EXC-F 2010 MODEL here that am working on and it has a problem of cutting power when hot.. When cold it starts ok and rides ok but after rideing it for less than an hour it starts cutting and behaving like the fuel has finished and when u go on a halt it switches off and dsnt cme on immediately but after 10-20 minutes it starts fine. I´ve put new plug ,new pulse unit , cleaned the Caburettor but still the same.