SOHC.co.uk Forums > CB500/550

Finally after too many years I'm working on my 500/4

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Lobo:
'Shed.jpg"

"Aladdin's Cave.jpg" may be better?

S

matthewmosse:
A lot of the better stuff is in other sheds ;-)
First bloomer of the job, fitted the swing arm etc, then realised I have an endless O ring chain, swing arm needed to come back out, sidecar then needed to come off as the swing arm bolt was too long to come out, so I have re fitted the swing arm bolt from the other side. I hope this change won't bite me in the behind later. The wheels look a lot better after a light spray with silver, the deep lustre of the remaining chrome shows through. I think I shall not take the tyres off, but carry a spare set of wheels in the chair for the mot test, spotted a small ammount of cracking in the tyres, not too bad for mot I think. Despite talk of O ring chains eating engine cases mine seem fine so far, last O ring chain lasted long enough to wear the rear sprockt out til it had no teeth. I have a chaincase that completely keeps crud off the chain for the rebuild, once I have cleaned the thing, it was properly coated in abrasive crud and looked like scrap, but the lightest wire brushing so as to not kill the O rings revealed a nice clean chain under the grease, just needs sluicing in wd40 or something and running fast to sling the crud off, and re lubricating.
handy workshop hint, at a local auction I saw some filing cabinets, they were cheap, very cheap compared to a tool chest, thr computer age must mean there is a lot less need for filing cabinets but they make excellent lockable tool chests or parts stores.

Bryanj:
That sticker looks like a "yank" thing I have seen before where crankcases have been replaced with new, which come unstamped, and whoever did it did not stamp the original number

matthewmosse:
Several of my engines came from Ap incorporated, who inport(ed?) Bikes from usa. So very very likely a yank inport engine, they claim the bikes are all low milage which is a good sighn. I know it runs, does not leak, but when last on the road it wasn't exactly running very well, but I have since been reading a lot on this here forum, and thinking on the various clues of when it broke down, I think carbs and coils are going to be looked at. Also plug caps. However carbs are the prime suspect, they were the k3 ones I knew were capable of awesome economy, but I intend to revert to the cb500/4 items and regain the ability to spin the rear tyre every corner, and set aside the constant carb issues that plagued every bike those carbs were fitted to.

Bryanj:
K3 carbs get clogged up very easy and are not the easiest to get clean

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