Early ‘Wings have very reliable clutches that last a long time. I did upgrade the clutch in RC-003 ….one of many upgrades necessary to handle the increased output of the supercharger.
1. Friction Disk Set: #HPK-18 (includes 9 disks…only 8 are used)
2. Disk Clutch Plate Set (6): #401-35-078024 (same as old Barnett number #HP-24-20)
3. Heavy Duty Spring set (6): #MT-15-6
4. OEM damper plate retained in center position
5. New Honda clutch cover gasket: #1193-371-306
6. New Honda clutch shaft oil seal: #91202-KFL-841
7. ’77 clutch lever, ’77 clutch perch and ’77 left handlebar switch (extra leverage of longer lever reduces clutch lever effort)
Since I had not done a clutch job in a while, I referred to Octane’s remarkably useful Tech Tip to refresh my memory (much better than any manual):
“The NGW Project Bike. Clutch renewal. Engine in frame.”: https://www.ngwclub.com/forum/viewtopic.php?t=6905
Lars wrote a terrific tutorial on how to perform this work!
One of the details Lars mentions during finally reassembly is:
“Now for some reason (that I can’t recall now) I couldn’t get in the whole package (plates AND clutch center) so I had to first insert the plates AND THEN the center after aligning the tangs … and after a LOT of fiddling I got the center in.”
Here’s the method I use to make that detail a bit easier:
Build the whole stack onto the clutch center after pre-soaking the friction disks in motor oil for 10 minutes. Note: these disks are shown “dry”….to keep oil off my fingers and camera!
![Clutch Details 1](https://www.randakksblog.com/wp-content/uploads/2012/12/Clutch-Details-1.jpg)
Next, separate the forwardmost 2 friction disks and 1 clutch plate:
![Clutch Details 5](https://www.randakksblog.com/wp-content/uploads/2012/12/Clutch-Details-5.jpg)
With the inner pressure plate in it’s correct postion, now insert these (2) friction disks sandwiching (1) clutch plate into the clutch basket as shown:
![Clutch Details 8](https://www.randakksblog.com/wp-content/uploads/2012/12/Clutch-Details-8.jpg)
With everything centered, you now have enough clearance to maneuver the remainder of the entire clutch pack into position in one operation with minimal wiggling!
![Clutch Details 9](https://www.randakksblog.com/wp-content/uploads/2012/12/Clutch-Details-9.jpg)
As Lar’s points out, be certain the clutch pack is “flush with the edge of the ‘outer drum’ edge.”
The rest is easy…just complete the steps as Lars lays them out!
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