Honda CB Seven Fifty 1992. 20000 miles. Mint Condition, always regularly serviced. Never ridden hard. Normally totally quiet engine. Started the other day and now makes the most terrible sound from the engine crankshaft area I think. Like a very loose cam chain. Have checked that the tensioner is OK - took it out, examined it, reset it but made no difference. Noise worse under load. Still like a very loose cam chain - could it be the altenator chain?
I have no answer, but I have a 1994 cb 750 with a noisey cam chain, I need a chain and a link, I know they are avaialble, this will allow for repair engine in sit, I had a guy offer one for good money with link but lost his frikking details, any one know where I can get a chain and link for the 750 1995 cb bike fires first on the button be a shame to scrap it, break it, any one ionterwested in the bike i want 900 have aero qups hagen shox, new pilot tyres, also need one fork seal doing, and I know this is a easy job, I do all my suzuki ones myself.
Hi, i dont have solution but think I have exactly the same problem, But noise not there under load, just at low revs, no power loss, Bike shop took off rocker cover and said no problem there, but would need to take engine apart to check hydraulic lifter?, which would end up costing more than the bike is worth and still not know where the problem is. Bike is a honda Bb 750 K2 in perfect condition otherwise, So did you eventually find problem. regards John. ([email protected])
Hi, had the same problem, turned out to be alternater chain tensioner, mechanic checked this by taking off alternator cover ( 3 Allen bolts) and checking for play, should be no play. mine had play so problem with tensioner, Which will cost over 2500- AUD at least to repair as need to completly take engine apart. So thats the end of my bike, not worth doing the repair with the risk of it going again, my advice dont buy a 1992 honda bb 750
just got same problem , not happy at all . love the bike but wonder what will happen if i just carry on and not bother with the fix. not worth the cost as i have also been told its a engine out job and would cost loads to fix. sad cos its a nice bike as you will all know . my problem was starting from cold , large bang and then could not turn engine over , trying for a min then it started but gave me the rattle ..
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I am not familiar with every engine Honda builds, I don't know what a alternator chain is. Normally the cam chain is quiet. You say it runs so it can't be too out of adjustment. If you wish to keep this bike in mint condition, I suggest you have this fixed by a Honda Pro before the condition worsens.
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