Topic: more silly 750K timeline discussion.

[Don R]

 I'm trying to gather a few parts for bike to sell as a project, it's got a 1971 title, 6/70 build month good frame tag, 750.  It's #1043372 with an appropriate number engine which is 1100 or so from the end of K0.
 The question is should it be strictly K0 or were some K1 parts already starting to filter in?  I read recently about transition bikes between K0 and K1. I was aware of some odd parts used during the K1/K2 transition.

[Old Scrambler]

I acquired a red swap-meet project with very late K0 numbers and 1970 registration/title. It had the K1 sidecovers, airbox, and push-pull carbs. It retained the ducktail seat and had HM300 pipes. The tanks and front forks/instruments were missing. I paid $175 in 1999 and sold it for parts to several countries for a little more than $3000. My wife kinda allowed me to dabble with bikes as long as her car would fit in the garage 

[BenelliSEI]

I acquired a red swap-meet project with very late K0 numbers and 1970 registration/title. It had the K1 sidecovers, airbox, and push-pull carbs. It retained the ducktail seat and had HM300 pipes. The tanks and front forks/instruments were missing. I paid $175 in 1999 and sold it for parts to several countries for a little more than $3000. My wife kinda allowed me to dabble with bikes as long as her car would fit in the garage 

That sounds like a perfect combo. The the 1-4 throttle cables on my early bikes are just a pain......

[bryanj]

Yes there was a transition model, trigger would be able to give beter details, i think it was about 39 of them came to UK

[WideAWAKE]

My K0 is late(last month of production) and while it wasn’t complete and had other parts with it, it did have a K1 airbox that was gold (someone painted it black but still had gold paint inside). Bike also had original gold headlight ears with it.

It had original gauges, an early master cylinder with adjusting screw, original switches and my right switch had a two cable set up.

My bike had later push pull carbs but based on the rest of the bike, I think it’s a good chance it came with push pull carbs.

My bike has hm300 pipes 

Front fender I believe was original and double rolled.

I’m the third owner since new.

[69cb750]

The question is should it be strictly K0 or were some K1 parts already starting to filter in?

The parts manual lists old style instruments, duck tail seat, four cable carbs, old style side covers for CB750-1000001 to CB750-1044649
The parts manual lists glass instruments, flat seat, two cable carbs, rounded side covers for CB750-1044650 to CB750-1121806
Part numbers tell you what the parts are, the parts manual tells you the vin ranges they were used.

Transition bikes ?
I've owned lots of transition bikes, nine of them in the past 25 years, previous owners transitioned newer parts onto older bikes.
I have one original bike, the way the factory built it.

Yes there was a transition model, trigger would be able to give beter details, i think it was about 39 of them came to UK

Report the frame and engine vin, tell me what parts it has, I will prove with Honda parts manual it does not exist.

[bryanj]

As im not in US dont know what went on over there but in UK, officially we didnt get sandcast except maybe the press bikes and there definately was a "transition" model, if i can find my Honda UK model guide(only about 4 pages long unlike the US one) i will photo it and post it for you, unfortunately my printer has decided not to communicate when asked to scan.

[Don R]

 I agree that more owners "transitioned" these bikes than Honda did. I've often said parts swappability is the best/worst thing about the sohc bikes.
 I've spent years putting my diecast back to stock a bit at a time. Recently, I built wheels to replace the Lester mags someday. My best find was an original replacement speedometer new in the box for $400.