SOHC.co.uk Forums > CB500/550
Help needed to identify my CB500-4
AshimotoK0:
--- Quote from: Oddjob on February 07, 2023, 07:32:26 AM ---Might be a fault with your logic there Ash, I’d imagine the gearbox fault on the K0 didn’t come to light immediately and Honda would have covered it up for a short while, so unless the US got the 500 many months before the rest of the world it wouldn’t really have been known about for the UK to have declined importing it, and even if your logic is right why not stop selling in all of Europe until they’d fixed the problem. I’m thinking that it could be the press reviews in the UK that prompted HondaUK to say no, the headlight switch problem was something so dangerous that if someone had been killed as a result then the brand would have suffered so badly they decided not to import until Honda had fixed the problem. Someone imports one from Europe and they can legitimately say not our fault, not a UK spec bike, a get out of jail free card in effect.
--- End quote ---
Maybe, TBH my main reason for contacting him was to ask him about the UK CB750 launch / Brighton PP bike and the BBC programme associated with it. My Cb500K0 is a USA, square crankcase, (green) model anyway so I have no particular interest in the UK 500 bikes. your logic doesn't follow either cos the CB750K0 WAS sold in the UK in significant numbers with the same lighting switch..I think (but had a black kill switch knob)
Trigger:
Also the UK 750 K1 had the same switch Ash. No complaints or recalls on that one also ;)
B11sey:
I think the switch problem is greatly overstated. Ran my K0 for 9 yrs (commuting to work in the dark all winter) before layup and I didn’t even know there was a problem until read it on here
AshimotoK0:
--- Quote from: B11sey on February 07, 2023, 11:49:31 AM ---I think the switch problem is greatly overstated. Ran my K0 for 9 yrs (commuting to work in the dark all winter) before layup and I didn’t even know there was a problem until read it on here
--- End quote ---
Yes I agree. Quite a few other UK Honda's around that period had that 'LpH' switch arrangement as well (SS125 etc)
The K0 needle roller seizing on the mainshaft issue was significant though ... my bearing was well and truly fooked and Graham (Trigger) once showed me a very low mileage K0 countershaft that had been fried by the needle bearing seizing. It's a double-bunched roller type and on mine the alloy carrier cage had disintegrated.
B11sey:
The K0 needle roller seizing on the mainshaft issue was significant though ... my bearing was well and truly fooked and Graham (Trigger) once showed me a very low mileage K0 countershaft that had been fried by the needle bearing seizing. It's a double-bunched roller type and on mine the alloy carrier cage had disintegrated.
I’ll check mine when I split the cases. Are there any proprietary fixes for the K0 gearbox issues?
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