SOHC.co.uk Forums > CB750
Engine and frame no's
Trigger:
Hi Nigel, Have not seen you for a while mate.
If it is a UK K2, if so the numbers are correct as long as they start with 20**** and there was a few late registered into early 1973 with 20 engine numbers.
How can you have a K3 returned to UK spec ? We never had K3 in the UK. And Yes you can have mistakes on paperwork.
sprinta:
--- Quote from: neilg on August 16, 2017, 01:01:20 PM ---Firstly I can't answer as to whether these numbers are original, however the V5 will show what ever engine number is provided either on original registration by a dealer or a subsequent updated number after an engine swop with the number provided by the keeper at the time. So from the V5 you can't tell if the engine is original or not. Unless of course there is a large difference in manufacturing dates. And yes they most definitely do make mistakes. What prefix is on the registration plate?? That's the big clue as to the correct year. I think July 71 was J and March 74 on an M.
--- End quote ---
My understanding is that normally the engine number would be higher than the frame number so on the numbers you have given they are both K2 but the engine may be from an earlier bike than the one you have?
UK K2's, I believe, continued to have 20###### series frame numbers but they would have received the current latest engines in subsequent years. So that when the K3 were released the UK K2's would still have had 20###### frame numbers but the engine numbers would then have started from 22##### and then when the K4's were released they would have then start from 23##### and so on.
Sparrow1:
Trigger,
Good to back! I have a lovely K3 and back in the 750 loop once again..👍😊
Indeed, poor words regarding my K3. Yes, of course there was never a K3 and I hear ' pratt' quietly spoken by others. I love the Flake Orange (with a tad more flack in this one!) and wanted the Honda improvements on the engine. With all that the bike is back in UK spec featuring handle bars and UK rear 'subtle' lens and black bracket, along with the front indicators attached in the UK way - subtle changes but as close as I dare go, barring the colour of course. She can be retuned to US spec quite quickly.
My heart lies in a UK K2 and has done so for a while. Hopefully not long now.. Having both of these bikes, in top notch, will make me a happy bunny and very fortunate. Cheers.
Nige.
Trigger:
--- Quote from: Sparrow1 on August 16, 2017, 10:39:36 PM ---Trigger,
Good to back! I have a lovely K3 and back in the 750 loop once again..👍😊
Indeed, poor words regarding my K3. Yes, of course there was never a K3 and I hear ' pratt' quietly spoken by others. I love the Flake Orange (with a tad more flack in this one!) and wanted the Honda improvements on the engine. With all that the bike is back in UK spec featuring handle bars and UK rear 'subtle' lens and black bracket, along with the front indicators attached in the UK way - subtle changes but as close as I dare go, barring the colour of course. She can be retuned to US spec quite quickly.
My heart lies in a UK K2 and has done so for a while. Hopefully not long now.. Having both of these bikes, in top notch, will make me a happy bunny and very fortunate. Cheers.
Nige.
--- End quote ---
The K3 sounds nice, lets have a picture of her.
What about the rest of your collection, do you still have that stunning CB450 ?
I have always had a soft spot for the UK K2.
Sparrow1:
Morning Trigger.
Ok, I'll dig one out.
Indeed the Bomber is well and lovely. Wasn't sure if I was allowed to mention a 450 here! 😳
Let you know about this K2. Have now spoken to the restorer - sounds promising.
Nige.
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