‘ They’re pretty reliable, but with a couple of issues’
We’ve sold quite a lot of them and they’ve been pretty reliable, with only a couple of issues to be aware of.
The main thing is that the generators go, but they’re covered under a seven-year warranty from Honda. One of the telltale signs is that the rocker cover gasket starts leaking. The problem occurs when you get a spark from the generator that ignites the oil vapour and you get a mini explosion in the engine - and the weakest point is the rocker cover. It normally just pops the gasket out, but we have had it where it cracks the rocker cover. If it’s got an oil leak, that’s probably what is causing it.
Take your multimeter with you and check that, with the engine running at about 5000rpm and the lights on main beam, the battery reads above 13.5 volts.
As long as the bike is within the seven years it will get sorted out under warranty, which covers the labour as well. It’s a very common issue and it’s replaced with a modified part. The new ones are less likely to go again, but it’s not unheard of. Replacement parts are covered under the warranty as long as it’s within the seven years.
The other thing to look for is the chain adjuster. Make sure the bike has the toolkit with it and that the eccentric cam at the wheel hub can move freely. If they seize up you’re looking at a good couple of hundred quid to get that out, clean it all up and put it back. Just undo the pinch bolt and then use the C-spanner in the toolkit to check it moves back and forward.
This is quite common if the bike hasn’t done a lot of miles, but if it’s one that’s been used fairly regularly they don’t really seize.
The engines can be quite rattly and we used to get a lot of complaints about it, so we stripped a few down to check them and never found any cause for concern – they’re just generally a bit rattly.
But you do need to listen for the sound of a camchain tensioner problem. Blip the throttle and if there’s a rattle on the over-run then that will be trouble with the camchain tensioner.
Those issues aside, the CB1000FS are brilliant to work on and are really popular with the lads in the workshop here.
‘ The generators go, but they’re covered under warranty’
Look here Check the state of your generator and make sure the chain adjuster’s OK