Author Topic: clutch pull  (Read 816 times)

Online Seabee

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  • 1957 Road Rocket
clutch pull
« on: 27.12. 2013 20:55 »
Hi guys,

The 6 spring clutch on my 57 RR is much harder to pull in than the 4 spring unit on my 61 GF.  Is that to be expected?  The 57 is definitley NOT an around town bike unless I hit the gym a LOT more!  The clutch works well as adjusted, but if I loosen up on the spring tension it will slip.  Opinions?

Seabee
1961 Super Rocket
1957 Road Rocket
2009 Harley Electra Glide Classic
1993 Harley Springer Softtail
1970 Harley Sportster Chopper
1957 Harley Panhead Chopper
1982 Yamaha XT550
2001 KTM EXC 400
1970 Honda CT70
Southern Illinois, USA

Online cyclobutch

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Re: clutch pull
« Reply #1 on: 30.12. 2013 13:28 »
I’m running a 6 spring on my ’58 iron head. I had to pull down the springs a little after getting some slip after running in, but whilst it is a good pull compared with more modern conveyances it is manageable. And I’m generally considered to be pretty limp wristed.
Various, including ...
'58 Iron Head Flash Bitza


Offline A.t.d.c. 1.

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Re: clutch pull
« Reply #2 on: 02.04. 2015 21:12 »
Yes I also have a 6 spring on my bb 33...I have been having fun and games as well ..what I have found with a 'repro' rear gearbox cover fitted is, that the hole the cable runs through makes the clutch very stiff ? or so it would seem ...Still I shall remove said cover tomorrow and see ...Good luck .

Online morris

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Re: clutch pull
« Reply #3 on: 03.04. 2015 21:37 »
Hi Seabee, the six spring clutch on my plunger can easily be pulled with 2 fingers on the lever. Although of a little bit different type than yours I can see no reason why yours should be much harder to pull?
Maybe the wrong type of springs (to stiff or to long)? The fact that it starts to slip when you loosen the springs points somewhat in that direction.
These should be of the correct type;
http://www.degroot-bsa.nl/index.php?route=product/product&path=75_93&product_id=777
'58 BSA A 10 SA
'52 BSA A 10 Plunger
'55 MORRIS ISIS
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Offline East_Coast_BSA

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Re: clutch pull
« Reply #4 on: 07.04. 2015 05:29 »
The old six-spring on my 59' was tougher to pull than the clutch on my Maico Magnum.  I had to make brass ends for the cables because it used to pull the original lead ends off.  The clutch basket had notches from the fiber plates and it never worked that well either.  I guess some perform better than others.