Author Topic: Questions about the 71 K1 I just purchased  (Read 3850 times)

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Offline Toxic

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Re: Questions about the 71 K1 I just purchased
« Reply #25 on: January 16, 2013, 03:45:34 AM »
Don't sweat the minor details, your bike is a real find.  Looks like all it needs is a quick clean and you are ready to go.

Congrats

Offline Stev-o

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Re: Questions about the 71 K1 I just purchased
« Reply #26 on: January 16, 2013, 04:14:25 AM »
Maybe there's really no  point spending a pile of money to turn it into a more complete K1

That's smart thinking...
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Dream750

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Re: Questions about the 71 K1 I just purchased
« Reply #27 on: January 16, 2013, 06:13:07 AM »
Don't sweat the minor details, your bike is a real find.  Looks like all it needs is a quick clean and you are ready to go. Congrats

I couldn’t agree more. 

Looks like you have a K1 that’s been updated/modified with a later engine and assorted K model parts. Probably not the bike you originally wanted, but a testament to the versatility of the 1969-76 750’s. Bikes like this can be made to run practically forever as showroom correctness is not a factor and they have a widest selection of used parts availability. The stock classic 750K styling lines are retained and truly a blessing in disguise for a 43 year old Honda. Believe it or not, there’s plenty of folks who would love to have a bike like yours. Myself included. ;)

Offline stickman

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Re: Questions about the 71 K1 I just purchased
« Reply #28 on: January 16, 2013, 06:31:08 AM »
Hi David and welcome to the forum.
Really nice find.  Why can't I find one that nice?
You have a great sohc 750 and most of the members here would
welcome the opportunity to take your bike home.
This group has given you some good advice.
So it seems a PO has perhaps taken a 71 and upgraded with a good
engine, front end and grab bar and rear fender from perhaps a 75 parts bike.  Happens all the time.
Point is you have several good options; depending on where you want to end up.
Since the engine is a 75, my suggestion is to focus on the mechanical things to
make it safe to ride, slap on some new tires, perhaps a 71 paint scheme and begin enjoying your piece of history.  You will probably learn to love her just like she is.  Whatever you decide, this group will be here to assist you.

 Get out there and enjoy your new ride.    Stickman
Ed Jones, Lenoir, NC
1971 CB750, 1994 Kaw police bike KZ1000

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #29 on: January 16, 2013, 06:55:48 AM »
Thanks for all the kind words and compliments, guys.  At the end of the day I know it's a great bike.  Now I just have to figure out what I'd like to do with it!
DB

Offline ekpent

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Re: Questions about the 71 K1 I just purchased
« Reply #30 on: January 16, 2013, 07:04:41 AM »
One other quick side note as far as determining the other parts  years,the rear grab bar would be from a 72-74 by the style of the turn signals,the thin stem style. The later 75-76 fat stem round back signals have their own grab bar dimensions at the mounts which are slightly different than the earlier.
  Bike looks nice,if it were me I would detail it out a little,get it running good and ride the heck out of it as is. Do you have the cafe or bobber bug by chance?

Offline DJ_AX

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Re: Questions about the 71 K1 I just purchased
« Reply #31 on: January 16, 2013, 08:13:10 AM »
Nice bike! ...
Just about every sohc4 I've seen for sale is not even close to all original.
Most are also a mish-mash of other years.

As I've discovered these oddities on my bikes, it has in someway revealed a story of it's history.
... to which I continue to add :)
Enjoy.
~ Vincent . . . '75 CB750 K5 . . . '97 BMW r1100rt . . . had; '75 CB550 K1 (sold) . . .  '73 CB350G (gifted) HELL YEAH!
Disclaimer: I could be wrong. :)

Offline MCRider

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Re: Questions about the 71 K1 I just purchased
« Reply #32 on: January 16, 2013, 08:23:36 AM »
One other quick side note as far as determining the other parts  years,the rear grab bar would be from a 72-74 by the style of the turn signals,the thin stem style. The later 75-76 fat stem round back signals have their own grab bar dimensions at the mounts which are slightly different than the earlier.
  Bike looks nice,if it were me I would detail it out a little,get it running good and ride the heck out of it as is. Do you have the cafe or bobber bug by chance?
There was a group of late K1s that had grab bars. There is a forum member here who actually bought and uncrated for himself a K1 and it has the grab bar. We went round and round, but he had the frame number and he had the bar, so it's one of those Honda quirks. member still owns the bike.

Not saying the OP has an origianl bar or a K2 bar, just saying.

It even shows up on the fish for K1:
http://www.motogrid.com/pages/OemParts?aribrand=HOM#/Honda/CB750K1_A__MOTORCYCLE%2c_JPN%2c_VIN%23_CB750-1044650/REAR_FENDER/CB750K1-JPN-A/2Y143410F14341024A
« Last Edit: January 16, 2013, 08:26:05 AM by MCRider »
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline Smoke Detector

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Re: Questions about the 71 K1 I just purchased
« Reply #33 on: January 16, 2013, 08:47:09 AM »
Welcome to the forum and nice bike. Love anything in Honda green. I'd suggest:
1. ride it
2. then figure out what you want to do with it
1972 CB500K1
"Preserve nature. Always wear a helmet. Think safety."

Offline 750K

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Re: Questions about the 71 K1 I just purchased
« Reply #34 on: January 16, 2013, 09:49:28 AM »
Thanks for all the kind words and compliments, guys.  At the end of the day I know it's a great bike.  Now I just have to figure out what I'd like to do with it!
Ride it! Enjoy it for a while, while you figure the rest out. Good looking bike you picked up by the way.
77 Cb750, 78 Kz1000

Offline Johnie

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Re: Questions about the 71 K1 I just purchased
« Reply #35 on: January 16, 2013, 11:19:42 AM »
Here is some info for you:

The CB750K1 Four was sold from 1970-71 and was available in one of four colors: Candy Ruby Red, Candy Gold, Valley Green Metallic, or Candy Garnet Brown. The gas tank stripe was gold. The tank, side covers, and upper forks were of the basic color (red, gold, green, or brown). The side covers were smaller and there were no slots on the leading edge. There was a two-throttle cable system (pull open and pull closed). The headlight shell was also the basic color. The exhaust system was a 4-into-4. The engine was a 736cc SOHC 2-valve dry sump inline 4 cylinder linked to a 5-speed transmission and chain drive. Honda CB750K1 Wiring diagram

Serial Number
Frame: CB750-1044650
Engine: CB750E-1044806

The CB750K2 Four was sold in 1972 and was available in one of three colors: Brier Brown Metallic, Flake sunrise Orange, or Candy Gold. The gas tank stripe was gold but as with previous models, the Gold tanks had a black stripe. The side covers were smaller than the K0 model and there were no slots on the leading edge. The upper forks were chrome. The headlight shell was black. The taillight and side reflectors were larger. There was a two-throttle cable system (pull open and pull closed). The exhaust system was a 4-into-4. The engine was a 736cc SOHC 2-valve dry sump inline 4 cylinder linked to a 5-speed transmission and chain drive.

Serial Number
Frame: CB750-2000001
Engine: CB750E-2000001

The CB750K3 Four was sold in 1973 and was available in one of three colors: Flake Sunrise Orange, Candy Bucchus Olive, or Maxim Brown Metallic. The gas tank stripes were white, gold and black. The side covers were smaller than the K0 model and there were no slots on the leading edge. The upper forks were chrome. The headlight shell was black. The taillight and side reflectors were larger than the K1 model. There was a two-throttle cable system (pull open and pull closed). The exhaust system was a 4-into-4. The engine was a 736cc SOHC 2-valve dry sump inline 4 cylinder linked to a 5-speed transmission and chain drive.

Serial Number
Frame: CB750-2200001
Engine: CB750E-2200001

The CB750K4 Four was sold in 1974 and was available in one of three colors: Flake Sunrise Orange, Freedom Green Metallic, or Boss Maroon Metallic. The gas tank stripes were white, gold and black. The side covers were smaller than the K0 model and there were no slots on the leading edge. The speedometer showed increments of 20 (i.e., 20, 40, 60, 80, etc.). The upper forks were chrome. The white tank pinstripe was wider than the K3 model. The headlight shell was black. The taillight and side reflectors were larger than the K1 model. There was a two-throttle cable system (pull open and pull closed). The exhaust system was a 4-into-4. The engine was a 736cc SOHC 2-valve dry sump inline 4 cylinder linked to a 5-speed transmission and chain drive.

Serial Number
Frame: CB750-2300001
Engine: CB750E-2300001

The CB750K5 Four was sold in 1975 and was available in one of two colors: Planet Blue Metallic or Flake Apricot Red. The instrument faces were dark green. The speedometer numbers were increments of 10 (i.e., 10, 20, 30, 40, etc.). The side covers were smaller than the K0 model and there were no slots on the leading edge. The upper forks were chrome. The white tank pinstripe was wider than the K3 model. The headlight shell was black. The taillight and side reflectors were larger than the K1 model. There was a two-throttle cable system (pull open and pull closed). The exhaust system was a 4-into-4. The engine was a 736cc SOHC 2-valve dry sump inline 4 cylinder linked to a 5-speed transmission and chain drive.

Serial Number
Frame: CB750-2500001
Engine: CB750E-2372115

« Last Edit: January 16, 2013, 11:22:16 AM by Johnie »
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

Oshkosh, WI  USA

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #36 on: January 16, 2013, 01:50:55 PM »
Just had a thought as to what may be a better approach.  Maybe I've been thinking about this backwards.  Instead of correcting everything under the sun on the bike to be a K1, it would probably be a heck of a lot easier to buy a K5 frame in good shape and move everything to that.  At the end of the day I'd have a K5 bike that, over time and if I wanted, I could correct any non K5 parts and I'd have a K1 frame with title. 

That almost makes sense...   :)

Thanks again for all the help guys!  Glad to know I found a good group as well. 

David B
DB

Offline Stev-o

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Re: Questions about the 71 K1 I just purchased
« Reply #37 on: January 17, 2013, 03:51:01 PM »
What do you gain by doing that other than an all K5 bike?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #38 on: January 17, 2013, 06:26:26 PM »
That's it, just making it an all K5 bike.  I'm sure there are easier ways to do that. 

Ok, decision has been made.  I'm going to:

1)  Leave it alone with regard to switching out parts to make it one K bike or another.
2)  Focus efforts and $ on making sure it's 100% gone over mechanically and sound, then cleaning it up cosmetically and painted (if any funds left).
3)  Ridden and enjoyed.
« Last Edit: January 17, 2013, 06:31:10 PM by David B »
DB

Offline Stev-o

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Re: Questions about the 71 K1 I just purchased
« Reply #39 on: January 17, 2013, 06:29:07 PM »
Good decision.  The next one you buy will be all original. Yes, there will be more!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #40 on: January 17, 2013, 06:34:09 PM »
That's what I'm afraid of.  You should see my basement and garage.  Between the radio control airplanes, firearms and now 2 motorcycles.......
DB

Offline MCRider

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Re: Questions about the 71 K1 I just purchased
« Reply #41 on: January 17, 2013, 06:42:48 PM »
Good decision.  The next one you buy will be all original. Yes, there will be more!
Its all original, just doesn't match.   ;)
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline stickman

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Re: Questions about the 71 K1 I just purchased
« Reply #42 on: January 17, 2013, 07:30:17 PM »
Wise decision David.  Get both an owners handbook and shop manual and have at it.

Stickman
Ed Jones, Lenoir, NC
1971 CB750, 1994 Kaw police bike KZ1000

Offline 74750k4

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Re: Questions about the 71 K1 I just purchased
« Reply #43 on: January 17, 2013, 08:20:05 PM »
Hi David,

I did essentially that. with my 71', VIN CB7501094028. Some PO's turned it into a wannabe Harley Chopper. Now it looks pretty original. It does have a 71' engine, but it had no turn signals, gauges, fenders, mirrors, airbox (had bad running PODS), no original type headlight. A 16" Harley style rim in back, and a 21" rim in front. Most of the equipment I put on it, was a mix of later year pieces, because most of the 71' stuff is expensive, and hard to find.

Martin

Offline neilc

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Re: Questions about the 71 K1 I just purchased
« Reply #44 on: January 19, 2013, 07:36:57 AM »
i have a 1970 frame ko and it doesn't have a vin number tag on it they are stamped into the left side of the frame,at one point i wasn't sure what frame and motor i had either,still really dont for sure

Offline Xnavylfr

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Re: Questions about the 71 K1 I just purchased
« Reply #45 on: January 19, 2013, 08:11:20 AM »
There you go bad mouthing US chopper heads...  OUR choices in what WE ride is like the choices in WOMEN, some of them are sleek and FAST that you CHASE but never really catch and others are more MATURED and comfortable to ride..
By the way a HONDA CB750 should NEVER be compared to a HD.  There is a reason  you can still find 1969/70 CB750s ,some ready to ride and NOT many 70 model HDs..

Xnavylfr(CHUCK)

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #46 on: February 07, 2013, 09:36:31 PM »
Hi guys,

I've started a new thread in the "Project Shop" section for my fix up project for any who would like to follow along. All comments and suggestions welcome!

Well, most comments welcome....
DB

Offline Stev-o

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Re: Questions about the 71 K1 I just purchased
« Reply #47 on: February 08, 2013, 05:50:59 AM »
Link?
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline David B

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Re: Questions about the 71 K1 I just purchased
« Reply #48 on: February 09, 2013, 08:28:09 PM »
DB