Bridgestone Motorcycle Parts Discussion Board

Bridgestone Tech Talk => 50, 60, 90 & 100 Talk => Topic started by: Jon West on February 09, 2024, 08:52:29 AM

Title: clutch fluid
Post by: Jon West on February 09, 2024, 08:52:29 AM

started working on my 100tmx, got it running great but clutch seems to slip some. now this bike has been sitting a decade and has 3k miles on clock. is there a best way to flush transmission and replace oil hoping the plates are just gummed up or sticky? before i think about clutch plates?

Title: Re: clutch fluid
Post by: OldSwartout on February 09, 2024, 09:57:22 AM

Someone may have put a modern friction-reducing engine oil in the transmission.  Replace it with old school plain 30W engine oil and double check the clutch adjustment per the manual (available on this forum).  It will probably be OK after a few miles and clutch release/applications.

Title: Re: clutch fluid
Post by: Jon West on February 10, 2024, 12:45:56 PM

Thanks, I will change it with Klotz and see what happens. Thanks for the advice!

Title: Re: clutch fluid
Post by: OldSwartout on February 11, 2024, 10:31:02 AM

I would use car engine oil, not sure what a good two stroke oil in the transmission would do. Others on this forum may have tried it and could let you know. 

Also, automatic transmission fluid does work well as it is intended for clutches.