BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: Mayo on 19 May, 2023, 18:25

Title: M21 clutch
Post by: Mayo on 19 May, 2023, 18:25
Hi everyone, I'm trying to set my clutch, having fitted, new springs, any advice gratefully received
Title: Re: M21 clutch
Post by: Mark N on 19 May, 2023, 20:14
Having refitted my clutch several times, i like to do the nuts up by hand so they are all a similar setting.
Jump on the kickstart and it will slip, so tighten a bit and keep repeating until there is no slippage.
Now use the depth gauge part of a vernier to tweak all the nuts until the plates are coming out evenly (I strap the handlebar clutch lever so the clutch is pulled in while I use the vernier).
This works for me, but no doubt someone will be along shortly to provide the proper way....
Title: Re: M21 clutch
Post by: Rog1 on 19 May, 2023, 23:25
Quote from: Mark N on 19 May, 2023, 20:14
Having refitted my clutch several times, i like to do the nuts up by hand so they are all a similar setting.
Jump on the kickstart and it will slip, so tighten a bit and keep repeating until there is no slippage.
Now use the depth gauge part of a vernier to tweak all the nuts until the plates are coming out evenly (I strap the handlebar clutch lever so the clutch is pulled in while I use the vernier).
This works for me, but no doubt someone will be along shortly to provide the proper way....

This has worked for me, too. I find I had to release the clutch lever while I tweaked the nuts, then strapped the clutch lever again when I checked with the vernier; repeating the process until I was happy. I'm not sure if this is what Mark N. meant.
Title: Re: M21 clutch
Post by: Mark N on 20 May, 2023, 01:07
Spot on Rog1
Title: Re: M21 clutch
Post by: Mayo on 20 May, 2023, 10:29
Ok thank you, I'm just about to have a look at her , 👍