1980 CB750 C F or K?

[DaveB]

I just bought a 1980 CB 750. How do I tell if it is a C, F or K? Thanks.

[irishcafe07]

the first letter after "CB750" of the serial number should give it away

[LukeM]

If you could post the frame number, I can check my Haynes manual and get an answer for you.

Luke M

[DaveB]

RC012212866   I found this number on the fork neck. I checked the bike title and this is also the serial number listed on it.

[LukeM]

From page 160 of the DOHC CB750 Haynes manual:

You have a 1980 US model CB750 C (Custom), built between October 1979 and October 1980.
Engine IDs for those bikes range from
RC01E-2109040 to RC01E-2136728.

Luke M

[DaveB]

Thanks for the help

[LukeM]

You're welcome. I'm glad I kept the Haynes manual. I sold the old bike a while back.

 Luke M

[sleepyfu]

Hi, all. my 1st post here. per the usual noob, I have a question.
I read the wiki on cb750 and looked thru a bunch of pix on google img search, but still don't know the difference between the C/F/K.
Will be going to check out a 1980 CB750K for sale, is there something I need to watch out for? thanks.
and sorry for the thread jack, but my Q was pretty much the same as yours/

[sgtslag]

The "K" model is an All Purpose Japanese Bike (APJB):  it can be adapted to any style of riding on the roads.  The "C" model is geared lower, providing more torque, and better low-end response, but it gets worse mileage on the highway.  The "F" is a sportier model, as far as I know.

Mine is a 1979 CB750K -- love it!  My Dad has a 1981 "C".  Not a bad bike, but the gearing is not to my taste, as I like to tour.  His tends to be quite loud on the highway, compared to mine, also, but I don't know what his OEM exhaust looks like inside -- it may be rusted out and mostly hollow.

The "K" model is rock solid, dependable, and it usually gets in the low to mid-40's for mileage (miles, not kilometers).  My wife and I toured around Lake Superior on our '79, back in 2009.  Rode through four days of rain, in Canada.  Never had a problem with the bike -- an incredible trip!  Bike still runs like a champion.  Progressive suspension is one of the best upgrades you can make on these -- mine now rides like a modern bike...  Ohhh, smooth and comfy!

Things to look for?  Make sure it starts well, check the color of the exhaust (blue smoke -- walk away...).  Check to make sure it hasn't been heavily modified, or if it has, make sure it was done well, and not a hack job.  Check the age on the tires:  if more than three years old, they need to be replaced due to potential dry rot (Pirelli MT66 Route tires are superb, and the only thing I run my bikes on, period; excellent wet traction -- tested in Canada...).  Cheers!

[Retcol]

Luke, would you mind looking up my frame number? RC01-2107328. I believe it to be a 1980 K model. Thanks much.

[LukeM]

I'll have to dig up the manual from the garage. Update to follow.

Luke M

[LukeM]

According to the Haynes manual:

1980 US CB750K

Luke M

[Retcol]

Thanks Luke, I appreciate your taking the time to look it up.

 

From: LukeM [via Honda CB750'S] [mailto:[hidden email]]
Sent: Wednesday, December 28, 2011 6:52 PM
To: Retcol
Subject: Re: 1980 CB750 C F or K?

 

According to the Haynes manual:

1980 US CB750K

Luke M

Back on 2 wheels after a 30+ year break. Used to have a 1979 CB750L, sold it as a parts bike, now riding a 1984 VT700C. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.

 

---

If you reply to this email, your message will be added to the discussion below:

http://honda-cb750-s.456789.n3.nabble.com/1980-CB750-C-F-or-K-tp3046675p3617716.html

To unsubscribe from 1980 CB750 C F or K?, click here.
NAML

[fighterDaz]

Hi, I wonder if you can check out my serial number, RC01-2014051, I purchased it as a K, but now Im not sure. Thanks guys. fD. England.

[fighterDaz]

Any one know answer to my frame number question?

[LukeM]

As soon as I get back home, I will look this up and reply. Busy week this week: stuff blowing up all over the place.  Remind me never to take a week off of work again.

Luke M

[Piute]

                                       This may help till Luke
     From;   http://www.z1enterprises.com/bike-list-honda.aspx
1980 Honda CB750C
- Frame: RC01-2200004
- Engine: RC01E-2109040  [more]
1980 Honda CB750F
- Frame: RC04-2100003
- Engine: RC04E-2100003  [more]
1980 Honda CB750K
- Frame: RC01-2100005
- Engine: RC01E-2100005
                                        Should keep ya busy till then

[fighterDaz]

Oh crap, my frame and registration number dont match...Reg is a 1982, frame is 1980.. I will keep you guys informed, I will wait to see what DVLA (our national licencing agency) have to say...I may be in the crap here boys..I purchased this bike with no registration document..Doh

[TOOLS1]

Hey, you might own a really nice bike somewhere.
I hope, you do not have a hard time straightening this out.
TOOLS

[fighterDaz]

Cheers tools, we will see what happens...!!