I replaced the steel plates, basket & fiber discs with used ones from a real low mileage motor the second time, then the third time I replaced the fibers with new yamaha parts & used the stiffer springs, this worked good just playing, when I started riding it hard the clutch started to slip in 4th then 3rd. Have free play at lever and dont see anything else wrong, I'm starting to think with my size and the performance of the motor the clutch is not sufficient. I built this bike for fun out of a bunch of parts I collected, I have other bikes to ride that fit me better but would like this one to work right even if it just sits in my shop. :bang: