bassmickster

Eureka! I fixed it! Thanks for all of your suggestions. The winner was.... The hydraulic perspective. During the "clutch fix" portion of my rebuild I had forgot about the fact that a visitor to my shop decided to "fiddle about" and squeezed the clutch lever. He squeezed it just one before I yelled "don't touch!" I promptly forgot about that blunder and put it all back together. This is sort of like squeezing the front brake lever when the rotor is removed from the caliper. The absence of a clutch pressure plate bolted down under springs allowed one squirt too much brake fluid into the slave cylinder. I had to bleed out a small amount of fluid to retract that pin and single ball bearing. It's all good now. And--the clutch fix is working nicely. Thanks again! Happy trails!

My bike model does have the single ball bearing on the end of the push rod pressure plate actuator. It's in there; the pressure plate moves in and out with the hand lever movement. I do have the factory parts diagram. I'll check for any match marks on the pressure plate in case I missed them.

Can you help me solve this problem? I can't get my '08 Beta 125cc to go-- and I literally mean "go"-- the crank will not make rear wheel spin! I just upgraded the bike and have obviously reassembled it incorrectly. Some back ground: I recently replaced the factory magnesium clutch / water pump housing with an aluminum one. I also replaced the plastic impeller with the bigger aluminum version. While I was in there I decided to do "the Beta clutch fix" (remove excess problematic factory adhesive from clutch friction plates). I have a factory manual and put everything back together as I thought it came apart. I added new fluids (75wt transmission oil for 2 stroke bikes and high grade antifreeze). It started on the first kick and runs fine (235 psi compression). But the throttle has zero effect on rear wheel drive no matter what gear it's in or whether clutch hand lever is engaged or not! I disassembled everything, checked for proper torque on six clutch pack bolts and visually scanned for missing / extra parts. When I spun the rear wheel (in gear) I could see the clutch plates spin. The clutch hand lever moves the pressure plate appropriately. I put it all back together double checking the diagram. Started it and same problem. It's almost as if the transmission oil is too slippery. The clutch just slips! At my wit's end! Ideas?