Hi All. I'm getting my M23 engine ready for overhaul and have dropped the cush drive off, only to find the drive side shaft splines totally knackered. Does anyone happen to know if these are still available or happen to have a drive side shaft with or without flywheel plus the cush drive parts? The part numbers that I have are 66-613 for the bare shaft or 66-682 for the assembled shaft, these are the same as all the other M series bikes of the similar era. Failing this, does anyone happen to know if the later M series cranks are a direct swop? Ant advice, much appreciated.
Thanks, Pete.

It is confusing looking at the part numbers.
They do seem to change from 66-682 to 66-644.

https://pesltd.uk/?product=66-0644

Mark

email (option): pes.sales@btconnect.com

i have the both axle NOS
if u interested can send photos

email (option): sl_hussein@yahoo.com

Hi Hussein. Are yours the early 66-682 type or the later 66-644 ones? Please advise. Thanks.

Hi All again. Well, it would seem that the later 66-644 is obtainable, does anyone know if this is a direct replacement or are there differences? All advice appreciated. Thanks, Pete

i am Sure the parts i have for m20 21 NOS
send email to me please
i will send photos to u

email (option): sl_hussein@yahoo.com