SOHC.co.uk Forums > CB500/550

CB550F

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Grewth:
I'm considering taking on a 550F project after making the mistake of selling the last one in 1999.
I'm pretty clued up on SOHC 750's now, but I've forgotten most of what I learned about the 550.
So could someone with the requisite wisdom please give me some clues on what's likely to be missing or broken on these bikes.
I seem to remember issues with rear brake drums and fracture prone top yokes (or was that the 500 ?)
Not sure about the above really,  but I'd like to know exactly what I should be looking at when considering a project bike

Sesman:
Hi, Gareth.

Which model year? I can only advise on my experience with a 1977 F2, which I sourced from America in complete low mileage condition, minus indicators and seat. Indicator head lamp ears were the biggest headache as they are becoming very rare indeed, along with original seat bases.

Bryanj:
Brake drum yes, they can crack, top yoke was 500 and 750.
Ignition switches can be troublesome and there are about 95 different sets of wiring!.
Ocassional gear breakage but not common, cam cover wear is heard of

Grewth:
Many thanks,  both of you  !
I think that the pile of bits I'm looking at is a combination of F1 and F2 bits.
Maybe some late 550K, but nothing early.
Brake drums I don't think there is any engineering solution to,  except to keep buying them until you find a good one.
Not heard of a successful re-lining as of yet.
My 550F1 had aftermarket cast alloys, can't remember the make, Italian I think.
Thanks for the heads up about the headlamp mounts - hopefully someone will start making replicas soon.
I think my F1 had a replica seat with a GRP base, and that was 30 years ago.
Ignition switch  ?
Don't  David Silver Spares  sell a decent pattern copy quite cheaply  ?

Bryanj:
Yes you can reline the drum, just have to find a man with a lathe

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