Frame number1031664

[Dhubie]

Hi

I have dug my old CB750K out the shed. Went in there in 1989. I originally purchased the bike as a rolling chassis in 1975. Apparently the chain had snapped and destroyed the crankcase halves.

As a young lad I rebuilt it with a then current engine K5. The carbs, exhaust and air box were missing so they all were from K5. For cost the exhaust was a yoshimura 4 into 1.

I am the second owner.
The bikes first registration was in July 1970, with an H reg plate. It is Candy Blue green.  I am struggling to find the history and where it fits in.
Any help?

[Nurse Julie]

A 103**** is a 1969/1970 750 K0, which would make sense with the chain / crankcase breakage.

[Bryanj]

If its an original UK bike you can pay a fee to Honda and get a dating certificate BUT it may only give the year as a lot of the Honda records in Japan were lost in a fire.
They cannot tell you the original colour and probably not even the dealer, the reg should tell you the erea it was registered

[Dhubie]

I think it was originally registered in Nottingham,  the number plate is CAL which tallies as a Nottingham registration

[Dhubie]

• The first recorded official Honda UK import arrived in January 1970 with the frame number CB750-1010369.
• The UK "Interim" K0 (1970): While Honda Japan did not officially use the "K0" designation, Honda UK parts literature explicitly isolated a "transitional" or interim batch of 36 units sold locally. These machines blend early and K1 features, with frame numbers strictly falling between 1044826 and 1045147

My frame number seems to pre date these initial 36 bikes. As it was registered in July 1970, it seems to be an official import but I don't know whether it was a dealer demo or what!

Does anyone know anything about the period between January and the 36 bikes being imported?

[Nurse Julie]

• The first recorded official Honda UK import arrived in January 1970 with the frame number CB750-1010369.
• The UK "Interim" K0 (1970): While Honda Japan did not officially use the "K0" designation, Honda UK parts literature explicitly isolated a "transitional" or interim batch of 36 units sold locally. These machines blend early and K1 features, with frame numbers strictly falling between 1044826 and 1045147

My frame number seems to pre date these initial 36 bikes. As it was registered in July 1970, it seems to be an official import but I don't know whether it was a dealer demo or what!

Does anyone know anything about the period between January and the 36 bikes being imported?

Sounds like you've been reading John Wyatt's book. ChrisR and Ashimoto K0 are the go to resource on this forum for the early UK model 750's. Your bike is a 1970 750 K0 diecast, pre the supposed 'transition' models.