Yeah, the battery isn't bad, and when I rev it with tank off the servo dosen't move. My 21 just had a bad battery and once started and revved the servo moved. I think it is a stuffed servo, or knackered PGM. On the track the bike is dead, has real trouble pulling in the top rev range.... I have turned it this morning to high, so if I get a chance I'll take it for a run and see. With no reg number etc I dont think I'll get much of a chance. Thanks though, I will double check the battery when i start it, just in case.