Author Topic: 750 K0 transition questions/mystery seat  (Read 3718 times)

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Offline zoo mob

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750 K0 transition questions/mystery seat
« on: August 05, 2008, 10:48:40 AM »
So I'm working on getting parts in preparation for a complete restoration of my 6/70 build 750 K0. Mine seems to be a bit of a K0/K1 hybrid, it had a non-honda seat when I got it, but had the later model locking seat latch with a key that matched the flush ignition. I'd assumed all k0's came with a duckbill seat, is not the case. The bike does have the larger sidecovers, K0 gauges etc. Also, the parts bike I'm picking up has some older parts as it is a 1/70 build, recessed ignition etc, what is my best bet for figuring what parts would have originally come on the bike? I want it to be authentic, but I don't want to end up building a fake sandcast.
« Last Edit: August 05, 2008, 11:36:05 AM by zoo mob »
Andrew
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 1993 XR650L
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Offline markjenn

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Re: 750 K0 transition questions
« Reply #1 on: August 05, 2008, 11:10:33 AM »
Not sure if this is useful, but I have a K1 and it doesn't have a keyed seat.  So sounds like your seat latch is post-k1.

- Mark

Offline zoo mob

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Re: 750 K0 transition questions/mystery seat
« Reply #2 on: August 05, 2008, 11:43:30 AM »
OK, the mystery deepens...I just took a second look at the seat that came with the bike, and it is clearly made atop a K0 seat pan, the bottom is identical with the ducktail from the parts bike, it has red foam, same latch, seat rubbers, aluminum trim etc. Does anyone recognize it as an aftermarket seat, or is it likely just an upholstery shop special? I'd thought it was just some random seat that had been thrown atop the bike, but it looks like it might make a good start for someone.





Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more

Offline Johnie

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Re: 750 K0 transition questions/mystery seat
« Reply #3 on: August 05, 2008, 12:10:43 PM »
My KO has a build date of 1/70 and does not have the keyed seat.  It does have the recessed ignition.  Both these items are unique to the sandcast and KO models.  When they discontinued the recessed ignition and started the keyed seat maybe someone knows.  Those appear to be OEM Honda pans to me.  Your pans have the 4 holes at the back in the arc and I believe that pattern was on the sandcast and KO.  The K1 has 3 large holes at the back.  Below is a pic of the seat latch on the KO.
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1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
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Offline dusterdude

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Re: 750 K0 transition questions/mystery seat
« Reply #4 on: August 05, 2008, 12:14:51 PM »
My KO has a build date of 1/70 and does not have the keyed seat.  It does have the recessed ignition.  Both these items are unique to the sandcast and KO models.  When they discontinued the recessed ignition and started the keyed seat maybe someone knows.  Those appear to be OEM Honda pans to me.  Your pans have the 4 holes at the back in the arc and I believe that pattern was on the sandcast and KO.  The K1 has 3 large holes at the back.  Below is a pic of the seat latch on the KO.
xactly
mark
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1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline dusterdude

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Re: 750 K0 transition questions/mystery seat
« Reply #5 on: August 05, 2008, 12:15:27 PM »
since we are on the subject.if anyone has a k1 latch assembly they want to sell,give me a holler.
mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline greenjeans

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Re: 750 K0 transition questions/mystery seat
« Reply #6 on: August 05, 2008, 01:59:01 PM »
I have a latch from an early '72...if that works, it's yours.
Yep, I'm the kid that figured out how to put things back together...eventually.

Offline Clyde

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Re: 750 K0 transition questions/mystery seat
« Reply #7 on: August 05, 2008, 06:43:40 PM »
Both seats look original K0/K1 seat pans, but the one on the left appears to have been cut down and reupholstered.
The key lock was introduced with the K2, but can be retrofitted to the K0/K1 frame.
The bracket for the key lock will bolt on to the early frame. The seat is different and would either have to be changed to a K2 seat or modified to fit the plunger for the key lock.
6/70 would be the last month of the K0 and should have a recessed key switch. However a lot of these switches failed over the years and were replaced with later ones. If the PO had fitted a key seat lock then he probably replaced both locks anyway
I have seen an early K1 with ducktail seat and larger frame sidecovers but with rod operated carbs.
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Offline zoo mob

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Re: 750 K0 transition questions/mystery seat
« Reply #8 on: August 05, 2008, 08:03:24 PM »
So if I take the recessed ignition off the parts bike, will I be able to get a key for it?
Andrew
 1970 750 K0
 1980 BMW R100T
 1980 GS1100E
 1993 XR650L
Always looking for more

Offline 754

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Re: 750 K0 transition questions/mystery seat
« Reply #9 on: August 05, 2008, 09:27:59 PM »
Honda dealers used to have a box of spare keys, if you showed you had the number , they should sell you one..

if they dont ask, get a spare for your buddys 750, and move it once in a while, just a few feet.. when the fork is locked.. drives em freaking nutz... ;D

 If you ride a lot you may want to save the recessed one for later.

I have 2 question re Honda keys I wonder about..
 Can a non-collared key still fit in a recessed ignition/?

 Does a keycutter machine exist??

By keycutter I mean like Schwinn uses.. send a guy with a cutter your lock number and the hand tool will cut a key that fits!!
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Offline Clyde

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Re: 750 K0 transition questions/mystery seat
« Reply #10 on: August 05, 2008, 10:32:11 PM »
Check to see if there is a number on it-for example T4546.
If so, there are a few sellers on eBay selling keys which will have a matching (hopefully) number.
Any good locksmith should be able to match a key for the lock, but it may be expensive.
A non collared key will fit the recessed ignition. My 5/70 K0 has ordinary keys, but I am still looking for an original key (but I am not sure whether I will live that long)
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Offline Terry in Australia

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Re: 750 K0 transition questions/mystery seat
« Reply #11 on: August 06, 2008, 01:14:03 AM »
I have a K1 seat latch on my 1/70 K0 seat, I'd be happy to give it to Dusty, if a kind soul here would send me their spare K0 latch...........  ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

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fixahonda

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Re: 750 K0 transition questions/mystery seat
« Reply #12 on: August 06, 2008, 06:59:08 AM »
Honda dealers used to have a box of spare keys, if you showed you had the number , they should sell you one..

if they dont ask, get a spare for your buddys 750, and move it once in a while, just a few feet.. when the fork is locked.. drives em freaking nutz... ;D

 If you ride a lot you may want to save the recessed one for later.

I have 2 question re Honda keys I wonder about..
 Can a non-collared key still fit in a recessed ignition/?

 Does a keycutter machine exist??

By keycutter I mean like Schwinn uses.. send a guy with a cutter your lock number and the hand tool will cut a key that fits!!

When I worked at a VW dealer we had a code cutter. You used the dies you needed for whatever key you were cutting, looked in the book to translate the key code into the cutter code and chopped away. It was nearly fool proof.

I'm sure most locksmiths still have some such device. It would be finding the proper Honda blanks that might take a while.

Offline 736cc

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Re: 750 K0 transition questions/mystery seat
« Reply #13 on: August 06, 2008, 07:05:44 PM »
hondakeys.com has nos plug keys available

Offline dusterdude

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Re: 750 K0 transition questions/mystery seat
« Reply #14 on: August 07, 2008, 10:17:49 AM »
I have a K1 seat latch on my 1/70 K0 seat, I'd be happy to give it to Dusty, if a kind soul here would send me their spare K0 latch...........  ;D
sherriff,you`re a sweetheart. :-*
mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline Terry in Australia

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Re: 750 K0 transition questions/mystery seat
« Reply #15 on: August 07, 2008, 08:42:34 PM »
My KO has a build date of 1/70 and does not have the keyed seat.  It does have the recessed ignition.  Both these items are unique to the sandcast and KO models.  When they discontinued the recessed ignition and started the keyed seat maybe someone knows.  Those appear to be OEM Honda pans to me.  Your pans have the 4 holes at the back in the arc and I believe that pattern was on the sandcast and KO.  The K1 has 3 large holes at the back.  Below is a pic of the seat latch on the KO.

Have you posted any pics of the finished resto yet John? My eyes aren't good enough to enjoy your avatar pic, but the pic of your seat latch shows just a hint of some of the beautiful detail! Cheers, Terry. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline Johnie

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Re: 750 K0 transition questions/mystery seat
« Reply #16 on: August 08, 2008, 07:34:06 AM »
My KO has a build date of 1/70 and does not have the keyed seat.  It does have the recessed ignition.  Both these items are unique to the sandcast and KO models.  When they discontinued the recessed ignition and started the keyed seat maybe someone knows.  Those appear to be OEM Honda pans to me.  Your pans have the 4 holes at the back in the arc and I believe that pattern was on the sandcast and KO.  The K1 has 3 large holes at the back.  Below is a pic of the seat latch on the KO.

Have you posted any pics of the finished resto yet John? My eyes aren't good enough to enjoy your avatar pic, but the pic of your seat latch shows just a hint of some of the beautiful detail! Cheers, Terry. ;D

Yes Terry, I had posted some.  Take a look at the September Bike of the Month thread and there are some there.  Thanks for asking.  ;D
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

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Offline paulages

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Re: 750 K0 transition questions/mystery seat
« Reply #17 on: August 08, 2008, 10:12:10 AM »
Honda dealers used to have a box of spare keys, if you showed you had the number , they should sell you one..

if they dont ask, get a spare for your buddys 750, and move it once in a while, just a few feet.. when the fork is locked.. drives em freaking nutz... ;D

 If you ride a lot you may want to save the recessed one for later.

I have 2 question re Honda keys I wonder about..
 Can a non-collared key still fit in a recessed ignition/?

 Does a keycutter machine exist??

By keycutter I mean like Schwinn uses.. send a guy with a cutter your lock number and the hand tool will cut a key that fits!!

one of my local honda dealers still has one. you tell them the number, they dial it in, then it cuts your key. they're pretty expensive, so when they broke apparently few dealers replaced them.
paul
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Offline HondaMan

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Re: 750 K0 transition questions/mystery seat
« Reply #18 on: August 08, 2008, 11:47:18 AM »
Both seats look original K0/K1 seat pans, but the one on the left appears to have been cut down and reupholstered.
The key lock was introduced with the K2, but can be retrofitted to the K0/K1 frame.
The bracket for the key lock will bolt on to the early frame. The seat is different and would either have to be changed to a K2 seat or modified to fit the plunger for the key lock.
6/70 would be the last month of the K0 and should have a recessed key switch. However a lot of these switches failed over the years and were replaced with later ones. If the PO had fitted a key seat lock then he probably replaced both locks anyway
I have seen an early K1 with ducktail seat and larger frame sidecovers but with rod operated carbs.

Me, too. My first one. I traded it for my present K2 in early 1971.
« Last Edit: August 08, 2008, 11:49:49 AM by HondaMan »
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