I'm just doing a restoration on what was actually a not bad 1965 CB77 and have been offered another one which will be more of a challenge but which I hope to buy when I get chance to go and see it. The lad selling it says that it's a 1967 model in red and that it has a type 2 engine which I believe is a 360degree crank? He also said that everything is there except the crank. I can find very few people in the UK though who know about the type 2 motor and they seemed to think that no UK CB77 models used this engine. Can anybody help me with info on this engine and whether it may be possible to get a crank or convert to type 1?
Hello to everybody btw. I'm a new member and long time CB77 lover now doing what I should have done many years ago and buying one (or two)
type 2 motor
Re: type 2 motorWelcome, Sussex boy! A Hampshire boy here..... Ask him whether it has 1 or 2 sets of points and coils. Obtaining a crank will possibly be more difficult than actually converting it back to a Type-1 (twin coils/points/carbs). There's a degree of certainty -- not sure quite how much of a degree, though -- that CYP77s (police variant) and perhaps some CP77s had Type 2 motors. Get the frame & engine nºs from him and let us know. CBM72s had Type 2 motors, btw. If you buy it and it is Type 2 and you wish to restore it to Type 1, then you'll at least need:
Re: type 2 motorHi Hampshire boy Steve and Jensen. Many thanks for the information. I'll have a look for the bits before I commit to buying. These bikes and bits for them are fetching very silly prices in the UK at the moment though. If anybody knows of crank and cams please let me know.
One more question. A previous owner painted the barrel fins black and it looks really revolting. Is there anything I can do short of dismantling the motor and blasting the barrels to get it looking well again. In my penniless bike owning teens it would have been wire brushing and silver paint but my guess is that would look almost as bad.
I'd say it depends what type of paint was used. If it was Sperex, then there must be some type of paint stripper, but what else is in the proximity which you'd prefer to not strip paint from?
Start with a cheapo steam-cleaner, probably from B&Q over there -- I got mine, a Palson, from Carrefour for €25 -- and clean up the motor first. If your steered components have good paint: jack up the front, under the motor, 'till the back wheel just touches the ground, support the motor (preferably under the starter) and remove the jack; drop the front wheel out, remove the front mudguard, tank, header pipes and carbs. Plug the ports! (most chandlers sell sets of wooden bungs comprising various sizes of conical plugs -- cheap as chips; plenty of chandleries around Shoreham, Littlehampton, Bognor, etc.). Mask the forks with polythene and use blue 3M Scotch masking tape -- if the cheap, cream coloured tape is used and gets wet then it's a right bar-steward to get off! Maybe Nitromors manufacture a liquid stripper to deal with Sperex or other heat-resistant paint. Wear goggles, gloves and a paper sanding mask, get a long-bristled brush and get stippling (no pain, no gain......). Steam off afterwards. With any luck the PO will have used enamel or acrylic paint!
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