The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Crossrodes on October 09, 2010, 01:53:21 PM

Title: '79 R65 Clutch Adjustment
Post by: Crossrodes on October 09, 2010, 01:53:21 PM
Does anyone know the specs for the clutch adjustment for the '79 (different than the 81 & later models I believe)?
Title: Re: '79 R65 Clutch Adjustment
Post by: Bob_Roller on October 09, 2010, 02:20:54 PM
I think the procedure is the same on the earlier bikes, pre-1981 .
Title: Re: '79 R65 Clutch Adjustment
Post by: Crossrodes on October 09, 2010, 02:40:41 PM
Bob I have the procedure in my Clymer manual....just no specs that I can find.
Title: Re: '79 R65 Clutch Adjustment
Post by: Crossrodes on October 09, 2010, 03:39:38 PM
OK, problem solved.  I assumed that there was some kind of clearance adjustment at the clutch arm end of the cable.  The measurement is actually done at the clutch lever (.08 in).
Title: Re: '79 R65 Clutch Adjustment
Post by: Barry on October 09, 2010, 04:14:07 PM
Crossrodes, you were right in a sense. The method of adjustment described in the 79- 80 riders handbook is different to the later bikes but it was quite complicated and both methods are trying to achieve same objective which is 2 mm free play at the handle bar lever and with the handle bar lever at half travel the clutch operating arm should be parallel to the gearbox end cover for max. mechanical advantage. I think most people would say the parrallel arm bit is not that critical but that's what BMW were trying to achieve and that's what the 201mm measurement will give you.
Title: Re: '79 R65 Clutch Adjustment
Post by: Crossrodes on October 09, 2010, 06:27:29 PM
Thanks Barry.  I remember reading that part about the operating arm being parallel.  I'll make sure that is the case.