Topic: engine # ?

[Ernest]

I just got my first bike, complete newbie to motorcycles.  The bike was sold to me as a 1971 Honda CB 750 and came with an extra engine in peices.  I bought the bike as a chopper/bobber project but I like the bike too much as is so I've decided to restore it.  The engine in the bike is stamped CB750E-0813820 and the extra engine CB750E-2460504.  Dumb question maybe but I can't come up with the K series by these #s on this list.   Does this mean the engines are K6 and K8?  I thought the 1971 was a K1 series?   

I need to get a title online and I don't know what year to call it.  What else do I look for?

Here's a couple links to pics of the bike.  Can you tell if it is a 71?

http://img.photobucket.com/albums/v135/thisanthrope/Honda%20CB%20750/1971cb7502.jpg

http://img.photobucket.com/albums/v135/thisanthrope/Honda%20CB%20750/1971cb750.jpg

Thanks, Ernest

[TwoTired]

I thought bikes were titled by the frame numbers on the headstock? Those are the VIN numbers.

According to the Honda Motorcycle Identification Guide:

CB750E-2460504 = is a 1976 year engine. K6

CB750E-0813820 is not referenced by my book.  None of the CB750 Engine serial numbers begin with zero after the dash in the book.

[Ernest]

Oops, 2813820

Oh, I didn't know the frame# and VIN where the same thing.     I don't know where the seller got 1971 from.
like I said I'm just starting out.  The VIN starts 23xxxxx, the engine must be newer.


thanks

[TwoTired]

Looks like your frame is a 1974 model (K4).

The 2813820 engine, if those are the correct numbers, fall outside of anything Honda has published.
If it is actually 2313820, then it is a 1974 K4 as well.

Check here to find a match for your example:

http://sohc4.us/?q=node/122

[KB02]

yeah, for title porposes on the bikes go by the year on the VIN plate. Allot of them also state the year right on the VIN plate ("Model year 197x").