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1967 CB450K0 Black Bomber Rebuild - By Royhall
royhall:
I think it's a fully hardened piece anyway. Thanks for the lend that would be perfect. Let me know the postage costs and I will PayPal it. Cheers.
royhall:
Still not been able to locate the correct rotor for the sprag clutch I have. I am thinking of machining the old one as it's knackered anyway. My thoughts are to clock it up in a four jaw chuck so the taper runs true then turn off the aluminium up to somewhere around the steel riveted part (careful of the screw holes). Then make a stepped steel ring to shrink on to the rotor and then fix with four correctly spaced countersunk screws (to keep the balance right). My only concern is that a steel ring may interfere with the magnetic flux, I considered making an alloy ring but am concerned that the centrifugal forces along with the forces exerted by the starter may cause an unplanned disassembly. Thoughts please.
I am going to reassemble it for now without the starter chain on so I can kickstart it and do the setting up work to get the project finished. But one way or another this is not going to be one of those fully restored Bombers that you see for sale that is perfect except it has no electric starter.
AshimotoK0:
Bummer Roy.. I would just assemble without the starter for now .. I managed to get a 5 speed rotor/starter clutch assy. assembly from DK that I am hoping fits my K0 .. must have grabbed it within a short time of them listing it. Let me be the guinea pig to see if it actually fits the K0 properly. I will keep my eyes peeled for another. They accepted 120 for it and it included the chain and motor sprocket .. so at least you know the UK benchmark price for a really nice one. The Americans seem to ask silly money just for the component parts. It's one of those situations where if you wait then something will usually crop up.
royhall:
Talk about confusing. These are the code numbers for the alternator rotor for what is an almost identical engine.
K0 - Early 31101-283-003
K0 - Later 31101-283-013
K1 - 31101-292-003
K2 - 31101-292-670
K3 - 31101-292-003
K4 - 31101-292-003
K5 - 31101-346-670
K6 - 31101-346-670
K7 - 31101-346-670
I cant find dimensions for any of the above so am unable to match up to the sprag clutch I have got. Why the strange change at K2, don't get it really.
Bryanj:
Numbers changes dont surprise me , Honda were trying to cure a known problem
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