SOHC.co.uk Forums > CB750

Model Identification and bearing issues

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Saddler77:
Hi people, I am looking for some advice as I am rebuilding a CB750. First issue I have is identifying the exact model, I believe it is a CB750 f2 (1977) but the frame number and engine numbers do not tally with anything I can find on the internet.

Frame number is CB750G-1000116
Engine Number is B750GF-1000024

If it is a CB750F2 though, those numbers do not match what I am finding on various websites.

The other question I have relates to steering bearings, according to the parts file I have it should have standard bearings fitted but mine has tapered ones. The reason I ask is even though I have replaced the bearings and tightened everything up there is still a bit of play in the yoke. I am use to working on modern bikes where this sort of play would be excessive but is this normal for a CB750??

I am sure I will be coming up with more questions but any advice on the other 2 questions would be much appreciated

Spitfire:
Hi there, can't help with the Chassis and engine numbers (are you in the UK ?), an expert is bound to be passing soon, I have an F2 (1977 S Reg) and the engine and frame numbers are pretty similar to yours.
As far as steering head bearings go most people change the standard bearings to taper roller ones, you can get kits from various dealers. If fitted correctly there should be no excessive play at all, do a search on the site for taper roller bearings you get some interesting results. Here are a couple of them:

http://www.sohc.co.uk/index.php?topic=2734.msg8460#msg8460

http://www.sohc.co.uk/index.php?topic=2501.msg6892#msg6892

Cheers

Den

SteveD CB500K0:
A photo will help us to identify the model too! (We like photos)

Steve

Bryanj:
That engine number should be GE and the "G" denotes a probable UK model tho' its supposed to mean general export and don't show up on searches as most of those are based on US models

UK Pete:
My F2 enginge starts B750GE and frame cb750G ,I think you will find all UK models have this numbering, but USA ones dont
Pete

 

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