SOHC.co.uk Forums > CB750

1981 CB900FB2 Bol Dor

<< < (2/3) > >>

andy120t:
One thing I would say, having had a CB900 for a while, is that they are big, heavy bikes - and mine didn't have the fairing which gives additional weight and bulk. It was lovely once it was moving, but very heavy to move around. I sold mine because of that - just mentioning as we are all getting older, and might not find old bikes as light as we used to.

Laverda Dave:
Didn't the CB900 have issues with the cam chain tensioner? I thought they have two cam chains, one from the crank to the inlet cam and another from the inlet to the exhaust cam?
A mate had one when they first came out, a silver and blue one. He really wanted the CBX (didn't we all!) but they were massively expensive. Really comfy seat from what I remember going on the back of it a few times.

Oddjob:
They did have the 2 cam chains you describe Dave. However I can’t ever remember a problem with them and it being one of my favs I’d always select it if one appeared for a service in the morning. I’ve done hundreds of services on them but not done any engine work at all on one. Never saw one apart at all in fact, which considering the volume of bikes QPM sold is surprising and must reflect them being a decent engine.
The only problem I can think of was one with the spark advancers being interfered with by the generator’s electrical pulse and even that was rare and only on the FZ model. Took me some time to figure that misfire out.
I also suspect they had soft valve seats as it wasn’t uncommon to change all the shims at the first service. Either Honda got their sums wrong at the factory or there was some wear occurring during the first few hundred miles. They were fine after you changed them all though.

Bryanj:
The first 750 twin cam had a mod to reduce oil pressure at sprocket seal as they blew the seal physicalu out of the cases and to replace was engine out, and i remember doing the shims which was a rear pain with the Honda tool and took forever

Rozabikes Tim:
A bit futher off the strict Bol D'or topic. Just seen this on Ebay. 1100 - real mans version. 🙃🙃

https://ebay.io/m/rrrA2N

Navigation

[0] Message Index

[#] Next page

[*] Previous page