SOHC.co.uk Forums > CB500/550

Sideways play in swing arm.

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--- Quote from: Oddjob on August 21, 2020, 09:30:27 AM ---A 74 550 can be either a 550K0 or a 550F1 and they both have different swinging arms with different bushing systems.

Has the petrol tank got a flap covering the cap or is the cap an exposed chrome one?

--- End quote ---

NO 550F1 in 1974 Ken  ;)

A 1974 550 should have the same set up as a CB500 four, same frame and swing arm.

SteveW:
Exposed fuel cap

SteveW:
On my vin plate it’s says built Nov 73

Erny:
It will be the same as my 550K1 (USA model)
https://www.cmsnl.com/honda-cb550-k1-four-1975-usa_model466/partslist/F++07.html#.X0NvScgzaUl

originally there is no washer under bolt head, only washer under nut (self-locking)

Stockt setup is: Bush-Felt ring-Thrust bush-Dust seal cup (steel)

And I can confirm what was said here, I had worn bushes and collar too (yes, expensive).

You will know once you dissassemble it, apart of dirty chain work it is quick to do

I recommend bronze bushings from Julie, before installng them make sure your swing arm is clean w/o debris where bushes will go. In my case they went in pretty tight, I used threaded rod to press them in (I would put them into freezer for hours before assembly next time)

SteveW:
Thanks for the info Erny  :)

Following Bryans advice I have just tried tightening the swing arm right up.

60ft lbs - still have play
80ft lbs - play has gone completely.

My question now is, was my play in the swing arm just down to it not being tight enough or is it still worn and I'm just masking the fault by over tightening it?

Have left it at 80ft lbs for the moment, haven't taken the bike out yet. Just want to gauge opinion first.

Thanks.

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