Author Topic: Getting my K0 back on the road  (Read 7934 times)

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Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #25 on: May 21, 2022, 10:43:46 AM »
Here is the inside of the reservoir. Looks like a fill line to me.

I’d guess nothing on this bike is “early - early” as it was so late in the K0 production.

Also, I believe I have a solution to match the original anodized finish on the switches.

I really didn’t want it to look like black paint.

I shot half the bottom and looks pretty close. If the results are good once I finish the rebuild of the master I’ll post up some more details.


 

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #26 on: May 29, 2022, 09:00:00 PM »
Still waiting on a few parts to finish up my bars so I started on my gauges.

My internals work and really just need a good cleaning and some grease.

Faces will be replaced as well as the faded jewels, the disintegrated light cups, the rubber for the lights and the pvc wrap.

Unfortunately, it seems the easiest way of replacing the rubber for the lights means clipping all the wires, sliding on the new ones and then soldering them back together. The other option is Undoing the crimps and solder at the light housing which seems like a real pain. We’ll see…

Has anyone pulled apart their harness and replaced the rubber for the lights??? What was your process??

Got all my internals cleaned and chrome polished up nicely.

A cheap headlight kit did wonders for my gauge “glass”. - trying to clamp my buckets down and hit em with a drill seemed like asking for trouble. - mounted it in my drill press and just held the bucket. Worked like a charm. Sanded em wet, 500,800,3000 and a polish.

There are still a few very very small imperfections but it beat spending a few hundred bucks on new housings.


Offline newday777

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Re: Getting my K0 back on the road
« Reply #27 on: May 30, 2022, 04:20:52 AM »
That's a good idea chucking it in the drill press.
Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline MauiK3

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Re: Getting my K0 back on the road
« Reply #28 on: May 30, 2022, 07:58:42 AM »
Nice job!
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #29 on: May 30, 2022, 11:56:30 AM »
That's a good idea chucking it in the drill press.

Works great with a polishing bonnet for aluminum bits too.

work the part instead of the drill.

The insides of the covers really don’t get damage so all they need is a polish.

Make sure to tape off the walls of the insides and your golden.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #30 on: May 30, 2022, 11:57:45 AM »
Nice job!

Thanks!! - and I’m sure I did t think of the technique on my own. Probably absorbed it somewhere, just can’t remember where.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #31 on: June 05, 2022, 05:27:30 PM »
Still waiting on my gauge bits to show up so I started taking my forks apart.

Probably the easiest forks I’ve ever pulled apart.

Had to track down some NOS seals cause new ones don’t seem to be an option but they were priced about the same.

Cleaned everything, flushed em out and gave em a “factory” polish. I didn’t get rid of every little nick and scratch and where there were casting marks from the factory, I just wanted em clean. Found some pics of NOS lowers and tried to match the shine of them.

Also, cleaned, prepped and painted my triple tree. As well as install from taper bearings.

Used a single stage urethane and gotta say, I am quite impressed with it. A product called “vintage Flatz” - satin black. Looks period correct.

If I don’t get my gauge parts this week I’ll probably pull the motor and paint the frame next weekend if I’m lucky.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #32 on: June 11, 2022, 07:10:27 PM »
Gauge parts never showed up, pulled the motor earlier this week and started painting. It was fairly easy to get out laying it on its side, but getting it back in is not gonna be easy…

Got my center and side stands, battery box, tool tray and front wheel disc painted.

Cleaned, prepped, primed and sprayed my frame.

Did some testing and satin was too flat, gloss was way too shiny so I went with a custom mix.

3 parts satin/1 part gloss single stage and I’m quite happy with the turn out. - vintage gloss.


Also got my bars built and cleaned up my coils. Hopefully get my front and rear hubs, cleaned and polished next week and be able to start getting this thing back to a roller.



*After working this frame over up and down I can say clean welds we’re not high up on ol’ Mr. Honda’s list.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #33 on: June 14, 2022, 08:55:01 PM »
Started to get my front end together. About as far as I can get at the moment until I get a front tire and front hub polished.

All my gauge parts showed up today so I will hopefully get to finishing those master this week.

Spent an hour or so wrestling my swingarm in. Getting those felt bits and caps on is quite a pain but I eventually got it without any paint damage.

Slow going and my work space is tight at the moment haha


Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #34 on: June 17, 2022, 04:20:15 PM »
Got some bits to finish up my gauges, we’ll mostly finish them. Still waiting on mounting rubber.

Everything cleaned up pretty well but getting the new insulation boots on the lights was quite a pain. Clipping the wires and resorting them was the only way it seemed so that’s what I did.

Need some new pvc wire sheaths but they are on the way.

Speedo damper was still in great shape (tested with a drill) so just a good cleaning internally.



Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #35 on: June 21, 2022, 01:04:47 PM »
It seemed a bit much to drop 300 bucks on some oil lines cause the lines were ratty.

Started looking into rebuilding them and here is what I came up with.

I know the crimps aren’t the same and I did have to shoot ‘em with an “aluminum” coating as they were a brass color but I think they will be close enough and probably only seen by a very keen eye.


Offline PeWe

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Re: Getting my K0 back on the road
« Reply #36 on: June 21, 2022, 01:07:52 PM »
Look good.
Important with correct lenght, not too long causing a kink obstructing the oil inside.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #37 on: June 21, 2022, 01:45:38 PM »
Look good.
Important with correct lenght, not too long causing a kink obstructing the oil inside.

Measured what came off and matched that.

I’m guessing what came off was original.

I’ll know soon enough haha.

Offline PeWe

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Re: Getting my K0 back on the road
« Reply #38 on: June 22, 2022, 01:20:13 AM »
You'll see when assemble. The inner is the tricky one.
I had to release oil tank a little when fitted my new oil lines on the engine. First on tank, then engine.
When on engine I could make the oil tank to sit correct.

These were the not cheap aftermarket ones from CMSNL.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Cruiser

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Re: Getting my K0 back on the road
« Reply #39 on: June 22, 2022, 06:03:58 AM »
Looking good! Great work!
Honda CB550 Four K3 1978
BMW R1150RT 2004

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #40 on: June 22, 2022, 07:22:28 AM »
- HendrikDG that’s for the kind words. This one is my first go at a CB750 and this forum has certainly made it much easier with all the help.

PeWe - notes taken! I remember getting em off and the one deepest in was a bit of a pain. I’ll be prepared to loosen thing up with the time comes. Appreciate the help!

Offline MauiK3

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Re: Getting my K0 back on the road
« Reply #41 on: June 22, 2022, 07:57:52 AM »
Great looking set!
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Stev-o

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Re: Getting my K0 back on the road
« Reply #42 on: June 22, 2022, 01:51:24 PM »
Nice job on the hoses!  We had a member that was rebuilding them but unfortunately he went dark.

Be sure to replace the o rings.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline MauiK3

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Re: Getting my K0 back on the road
« Reply #43 on: June 22, 2022, 01:52:58 PM »
He did my hoses, cannot remember his name, great job.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline Stev-o

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Re: Getting my K0 back on the road
« Reply #44 on: June 22, 2022, 02:41:56 PM »
He did my hoses, cannot remember his name, great job.

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

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #45 on: June 22, 2022, 03:24:46 PM »
Nice job on the hoses!  We had a member that was rebuilding them but unfortunately he went dark.

Be sure to replace the o rings.

Thanks!

They cost just about 50 bucks to do. I’d be more than happy to help someone out if they need a set built. The shop I went to locally couldn’t get their clamp to work over the fittings, but they let me in the back and we got it sorted out.

Nylon line is pretty cheap and they may cut a deal if I was able to bring em a batch but I have yet to confirm that.

Nonetheless, for about 50 bucks they seem worth it.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #46 on: June 22, 2022, 03:25:15 PM »

Offline Stev-o

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Re: Getting my K0 back on the road
« Reply #47 on: June 23, 2022, 07:21:59 AM »
Nice job on the hoses!  We had a member that was rebuilding them but unfortunately he went dark.

Be sure to replace the o rings.

Thanks!

They cost just about 50 bucks to do. I’d be more than happy to help someone out if they need a set built. The shop I went to locally couldn’t get their clamp to work over the fittings, but they let me in the back and we got it sorted out.

Nylon line is pretty cheap and they may cut a deal if I was able to bring em a batch but I have yet to confirm that.

Nonetheless, for about 50 bucks they seem worth it.

Here's a pic of the set Mo made for me, forget the cost.  They are on my "Park Racer"...


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

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #48 on: June 24, 2022, 03:07:35 PM »
Nice job on the hoses!  We had a member that was rebuilding them but unfortunately he went dark.

Be sure to replace the o rings.

Thanks!

They cost just about 50 bucks to do. I’d be more than happy to help someone out if they need a set built. The shop I went to locally couldn’t get their clamp to work over the fittings, but they let me in the back and we got it sorted out.

Nylon line is pretty cheap and they may cut a deal if I was able to bring em a batch but I have yet to confirm that.

Nonetheless, for about 50 bucks they seem worth it.

Here's a pic of the set Mo made for me, forget the cost.  They are on my "Park Racer"...



Those stainless lines look sharp.

Offline WideAWAKE

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Re: Getting my K0 back on the road
« Reply #49 on: June 24, 2022, 03:11:57 PM »
I got a question about exhaust diffusers

My pipes are 300s and here is the inside of the ends. It did not have diffusers when I got it but in the box of spare parts there some of what I believe are later style??

Can any one confirm if there are the correct diffusers or should I have the bigger complete unit (pic attached)