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C77 heavy duty clutch springs?

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DianneB
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Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

C77 heavy duty clutch springs?

Post by DianneB » Tue Apr 19, 2016 10:45 am

Took the 1967 Purple Dream for a boot this morning after replacing the friction plates in the suck-solid clutch and now I can break the clutch loose in every gear! :( The adjustment is as good as I can get. The clutch starts to take up with only a small release of the lever and, when fully released, there is slack in the clutch cable.

When I put the clutch together with the new plates, the springs seemed a bit anemic and the pull on the clutch lever is pretty easy as well. I have heard slipping clutches were a common problem and that somebody used to make "heavy duty" clutch springs for these.

Does anybody have a part number for heavier springs or a supplier for heavier springs?

Other than that, she is running pretty nice. It has good acceleration for a single-carb 305 but man is it LIGHT in the wind (compared tp my Harley LOL!)

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G-Man
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Post by G-Man » Tue Apr 19, 2016 1:29 pm

http://www.cmsnl.com/honda-cb77-general ... xZ4zD9XR7c

I think the "810" springs are the heavier ones.

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

FAST FRED
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Location: SACRAMENTO, CA

810 Springs

Post by FAST FRED » Tue Apr 19, 2016 5:25 pm

The 810 springs are too stiff for any street application. Unless you crush rocks in your bare hands, you will find the clutch lever takes two hands to pull it in and I'm not sure they allow full release of the clutch. I have Barnett clutch springs in my CL77 and I think they are the best choice.

Fast Fred
65 CL77
66 CL77
76 CB550FKR
76 CT90

redblk63
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Location: pasadena, california

Post by redblk63 » Tue Apr 19, 2016 6:00 pm

I just put in new Barnett springs and they cured a slipping clutch in my 1963 CB77. A bit more pressure at the lever, but not bad.

All in all, a cheap fix. Your mileage may vary.

DianneB
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Posts: 287
Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

Post by DianneB » Tue Apr 19, 2016 7:09 pm

Got a set of new 22401-323-003 springs coming. They are supposed to be heavier than stock but not as stiff as 22401-275-810.

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