Topic: ARRRRGHHHHH!!!!! Broke my clutch lifter plate!!! K2 750

[lucky]

I've joined the club -

Snapped mine this PM -



Ordered a complete assembly with what appears to be an aftermarket machined plate -



I'd love the torque specs if anyone has them, please.

Thank you

This was not your fault.
It happens to the best mechanics.
They follow the directions and it breaks. Very frustrating!!
The problem is that there are grooves on the back that must fit over posts.
You are tightening down the plate over 4 springs that have to line up over some grooves.
What you have to do is during the tightening of the plate bolts keep tapping the plate all around with a big screw driver handle so that one of the corners does not get hung up.

[Jerry Rxman Griffin aka MuthaF'er]

Lots of complaints about the 'earlier' clutches rattling. Honda came out with a field fix that inserted a Goldwing clutch plate into the mix. This is a double plate that took up a little more space. In order to make this work they removed an existing plate and disc. Etc.



75 Clutch pack


78 Clutch pack with ALL plates installed (nothing removed like the 'fix')


After this 'fix' Honda redesigned some of the components I'm thinking in '77. In order for this Goldwing part to fit the basket had to be lengthened and the cover modified.







Etc....................................................

The lifter plate part number 22360-300-010 is listing as fitting ALL the 750's. From Motogrid:

CB750F A MOTORCYCLE, JPN, VIN# CB750F-1000002 TO CB750F-1015054
CB750F A (76) MOTORCYCLE, JPN, VIN# CB750F-2000003 TO CB750F-2022317
CB750F A (77) MOTORCYCLE, JPN, VIN# CB750F-2100011 TO CB750F-2111489
CB750F A (78) MOTORCYCLE, JPN, VIN# CB750F-2200001
CB750K A (76) MOTORCYCLE, JPN, VIN# CB750-2540001 TO CB750-2575894
CB750K A (77) MOTORCYCLE, JPN, VIN# CB750-2700009 TO CB750-2729534
CB750K A (78) MOTORCYCLE, JPN, VIN# CB750-2800001
CB750K0 A MOTORCYCLE, JPN, VIN# CB750-1000001
CB750K1 A MOTORCYCLE, JPN, VIN# CB750-1044650
CB750K2 A MOTORCYCLE, JPN, VIN# CB750-2000001
CB750K3 A MOTORCYCLE, JPN, VIN# CB750-2200001
CB750K4 A MOTORCYCLE, JPN, VIN# CB750-2300001
CB750K5 A MOTORCYCLE, JPN, VIN# CB750-2500001

[nikcorg]

Thanks.

specifically, I'm looking at the cam lifter, which is available as new from CMSNL, but only for #273... onwards. (My bike is a #272...)

I haven't yet taken the clutch apart (looking for a space to rent and the clutch malfunctioned only yesterday), but I'm told the problem is common for Honda clutches. The theory being the small plug on the came lifter becomes worn out and snaps over, or something, which is why the clutch won't return to engaged position on its' own. (I'm not very gifted with engines and my english jargon for the territory is lacking as well. I'm relying on an experienced friend to get the job done.)

Specifically what I'm asking is, can I replace part no. 22830300000 with part no. 22830410010? To my untrained eye, the parts look identical.

My other option is to get the used full lifter assy and hope it fits.


PS. Sorry for the malformed links, but I'm not (yet?) allowed to post external links, it says.


Edit. I managed to find a new old stock part with the correct part no. on ebay, but I'm still interested in your response. Parts for the bikes are getting harder and harder to find and the K7 is hard anyway, so it would be nice to know which parts have changed over the years and which ones could potentially be usable, even though the part no. mismatches.

Edit2. Fixed the links

[Jerry Rxman Griffin aka MuthaF'er]

I have both but have not had the time to get back into it and check it out. One has a larger diameter shaft. Stueveone is mixing and matching parts in another thread. Check in there. Is this telling us the older one will work in all but the newer one will only work in 77/78?! Perhaps?!

22830-300-00

CB400F A (76) MOTORCYCLE, JPN, VIN# CB400F-2000001 TO CB400F-2008280
CB400F A (77) MOTORCYCLE, JPN, VIN# CB400F-2100001 TO CB400F-2104166
CB750F A MOTORCYCLE, JPN, VIN# CB750F-1000002 TO CB750F-1015054
CB750F A (76) MOTORCYCLE, JPN, VIN# CB750F-2000003 TO CB750F-2022317
CB750F A (77) MOTORCYCLE, JPN, VIN# CB750F-2100011 TO CB750F-2111489
CB750F A (78) MOTORCYCLE, JPN, VIN# CB750F-2200001
CB750K A (76) MOTORCYCLE, JPN, VIN# CB750-2540001 TO CB750-2575894
CB750K A (77) MOTORCYCLE, JPN, VIN# CB750-2700009 TO CB750-2729534
CB750K A (78) MOTORCYCLE, JPN, VIN# CB750-2800001
    CLUTCH COVER
CB750K0 A MOTORCYCLE, JPN, VIN# CB750-1000001
CB750K1 A MOTORCYCLE, JPN, VIN# CB750-1044650
CB750K2 A MOTORCYCLE, JPN, VIN# CB750-2000001
CB750K3 A MOTORCYCLE, JPN, VIN# CB750-2200001
CB750K4 A MOTORCYCLE, JPN, VIN# CB750-2300001
    CLUTCH COVER
CB750K5 A MOTORCYCLE, JPN, VIN# CB750-2500001
    CLUTCH COVER

22830-410-010 is from the newer updated clutch

CB750F A (77) MOTORCYCLE, JPN, VIN# CB750F-2100011 TO CB750F-2111489
CB750F A (78) MOTORCYCLE, JPN, VIN# CB750F-2200001
CB750K A (77) MOTORCYCLE, JPN, VIN# CB750-2700009 TO CB750-2729534
CB750K A (78) MOTORCYCLE, JPN, VIN# CB750-2800001

[nikcorg]

I have both but have not had the time to get back into it and check it out. One has a larger diameter shaft. Stueveone is mixing and matching parts in another thread. Check in there. Is this telling us the older one will work in all but the newer one will only work in 77/78?! Perhaps?!

Ok, that makes sense. As there are no measurements in the photos it would be quite impossible to tell a small difference in the shaft diameter.

Looking at your list, it conflicts with what CMSNL is saying, if I'm reading this correctly. I already ordered the older version off ebay, hoping now it does indeed fit the newer one, if that's the one I have. No biggie if it doesn't, i can always order the newer one, but that would probably cut my driving season short. October usually doesn't provide many pleasant days for riding.

Thanks for your effort.

[Jerry Rxman Griffin aka MuthaF'er]

That info is copied and pasted from Motogrid.

[lucky]

This thread has wandered all over the place, but it started out being about the broken lifter plate problem.

The clutch basket on the 1977-78 model was improved.

The lifter plate was still a problem.
Worst I have seen on any Honda.

[74750k4]

Broke 3 plates. had a factory part on order from Partzilla back ordered 5 months. They just refunded me. Cannot get it anymore.