i am having trouble trying to work out what is wrong with my fork ,when i lift it off the ground ,the wheel turn with motor running ,but when on ground ,no drive, i have checked the inch valve all seems ok , how can i tell if the torque converter is ok ,or what should i check before that. i am a self taught mechanic and am very keen to learn all about my lift. can some one help me out with this matter. i would be very gratefull if i can get some help ,and advice as to get parts cheap as i can , many thanks.len