Cb 500 four k

[johbjo]

I have some trouble to find out year and model and wonder if someone can help me with this.
 Acc to registration paper  year 1976.  The bike is imported to Finland at some point
Frame no: CB500-2085415
Engine no: CB500E-2200927

[JamesH]

Looks like a very late CB550 K3. But engine no is for a 550 K4..

Check out www.sohc4.net/cb550-model-guide

[johbjo]

Yes that gives me some issue. When i have tried to seek on internet i also think that it has more similarites to 550 but on vin plate ,covers  and registrationpaper It says 500

[JamesH]

Duh sorry - I misread your initial post.

I seem to remember some discussion around european market cb500 K3/4's...so your bike may well be correct. The VIN plate looks totally genuine and original.

[JamesH]

And CMS have it listed here - so looks to be a European export model K3..

https://www.cmsnl.com/honda-cb500k3-four-european-direct-sales_model14676/partslist/?model_q=cb500+k3

[deltarider]

It's a CB500K3. Around 4200 were ever assembled and found their way mainly into Scandinavia. For identification by number, you can try at p.4 of http://www.honda4fun.com/pdf_parts_list/pdf_spac500-550/CB500-550_K3-K4.pdf Good luck.

[JamesH]

Excellent- so what you have is rarer than a CB750 Sandcast. !!!!

[Bryanj]

The parts book I have says 500/550 K3 and everything except barrels/pistons/jets is same as 550

[deltarider]

It looks like Honda had still some 500 engines on the shelf and/or that these Scandinavian countries had legislation (think: drivers license and/or insurance) that drew a line between 500cc and motors over 500cc.
Maybe the CB500K2 (ED, F, G) marketed on the European continent in 1976 was a similar story, as this model shared many things with the CB550K2 that was marketed in the US the same year.

[johbjo]

Thanks for your replys, now i know a little bit more of it

[triplE675]

I have a CB500 K3 and was a German import checkout the parts book from deltarider page 4 frame and engine numbers 500k3's have frame no's starting 1000 your frame must be a 550 k3. 
Regards

Sent from my Wileyfox Swift using Tapatalk

[deltarider]

I have a CB500 K3 and was a German import checkout the parts book from deltarider page 4 frame and engine numbers 500k3's have frame no's starting 1000 your frame must be a 550 k3.

I had the feeling there's been a typo (one of the very few) here and that forsaid list was not correct. That's why I wrote 'you can try' and 'Good luck'. So, tripEA675, just to make sure, your framenumber really begins with 1... ?

[kevski]

It looks like Honda had still some 500 engines on the shelf and/or that these Scandinavian countries had legislation (think: drivers license and/or insurance) that drew a line between 500cc and motors over 500cc.
Maybe the CB500K2 (ED, F, G) marketed on the European continent in 1976 was a similar story, as this model shared many things with the CB550K2 that was marketed in the US the same year.

Everything on these 500K3's is identical to 550K3except bore size and carb jetting, they are physically the same in every other way, no earlier type motors in them, i am still looking for my old K3 500, rgn114p if anyone knows where it is.