1981 Honda CB650 Clutch Cover

267 Views 5 Replies 3 Participants Last post by jsmith800, 13 d ago

jsmith800

Discussion Starter · 26 d ago

1981 CB650 - Looking for 2 needle bearing part numbers. Inside the clutch cover, looks like they're pressed in supporting the clutch lever.

they're not shown on any diagram.

https://www.partzilla.com/catalog/honda/motorcycle/1981/cb650-a/right-crankcase-cover

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TrialsRider

· #2 · 26 d ago

Hard part to wear out considering it is well oiled

or maybe the crankcase was full of ocean, I think you might be looking at working with what you have there or buy a whole assembly at a wrecker which will get costly.

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jsmith800

Discussion Starter · #3 · 26 d ago

ya, figured that. Mine functions perfect but glass beading to prepare for the engine powdercoat, I'll try to pull the needle bearings or protect the best I can before the oven.

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TrialsRider

· #4 · 26 d ago (Edited)

jsmith800 said:
ya, figured that. Mine functions perfect but glass beading to prepare for the engine powdercoat, I'll try to pull the needle bearings or protect the best I can before the oven.

The oil seal is the only thing you need to worry about if the rod rotates freely

on lots of bikes that part is just a bronze bushing, no rollers
... no need to worry about heat on bearings or bushings they can take more heat then the aluminum alloy castings

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AlanSmith7

· #5 · 13 d ago

I think you just need to worry about the oil seal. You must have to put the needle bearings. So, its easy no need to worry.

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I couldn't extract the needle bearings so as suggested just removed the oil seals and powder coated the part, all went well, temps were reaching 420 deg so any rubber would have been damaged, the needle bearings turn perfectly after the process. Thanks to all for suggestions!

I'm using Prismatic 'polished aluminum' color base with 'clear vision' clearcoat. the center bolt is powder called 'super chrome plus'.