Author Topic: 1976 Honda cb750K  (Read 26439 times)

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Offline grcamna2

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Re: 1976 Honda cb750K
« Reply #325 on: January 27, 2024, 08:07:38 PM »
Test fitted one pipe and looks good. Cleaning up a good set of pipes next.

John,are you using Busso exhaust ?
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
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Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #326 on: January 27, 2024, 08:12:50 PM »
Test fitted one pipe and looks good. Cleaning up a good set of pipes next.

John,are you using Busso exhaust ?

Bill….. No. I have a few really good used pipes that I’ve picked up years ago. The K6 will have a very nice set of 341’s. I think three of them are originals from this bike.
« Last Edit: January 28, 2024, 05:38:05 AM by BenelliSEI »

Offline PeWe

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Re: 1976 Honda cb750K
« Reply #327 on: January 28, 2024, 01:34:47 AM »
Possible to remove alternator cover and trans cover without too many drops of oil dripping out if leaning the bike to the other side.
1st gear in, right handle bar side against a wall.

Maybe not possible on a lift though.
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 BenelliSEI

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Re: 1976 Honda cb750K
« Reply #328 on: January 28, 2024, 05:06:47 AM »
Per….That’s very true. Since I was pulling both sides, to be polished, I drained the sump first.

Online BallAquatics

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Re: 1976 Honda cb750K
« Reply #329 on: January 28, 2024, 06:46:49 AM »
Test fitted exhaust spigots and #4 pipe. Stopped into a local shop (Bolts+) and picked up a fantastic substitute fastener for the 8 screws that hold in the exhaust spigots. These stainless screws have the same dimensions as the Honda parts and are screwed in with an Allen key!

Looking good John.  Do you use any sort of anti-seize when using stainless steel fasteners?
Dennis...  74 CB550  79 CBX  82 Seca Turbo  2011 CBR  2012 NC700X

You will regret the bikes you DIDN'T buy much more than the ones you DID!!!  It's never too late to start a new adventure!

Offline MauiK3

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Re: 1976 Honda cb750K
« Reply #330 on: January 28, 2024, 07:01:47 AM »
I always put some form of lube on SS fasteners, especially when they are used in a different metal. When it's SS nut and bolt I also use lube, they like to seize when not lubed up.
1973 CB 750 K3
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Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #331 on: January 28, 2024, 08:33:46 AM »
Test fitted exhaust spigots and #4 pipe. Stopped into a local shop (Bolts+) and picked up a fantastic substitute fastener for the 8 screws that hold in the exhaust spigots. These stainless screws have the same dimensions as the Honda parts and are screwed in with an Allen key!

Looking good John.  Do you use any sort of anti-seize when using stainless steel fasteners?

Yes, always. Used to use “CopperSlip” but then couldn’t find it locally. I have a pot of a Felpro Grey that I like for steel/ aluminum. I’m on my second one. Stuff seems to last forever!

Offline PeWe

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Re: 1976 Honda cb750K
« Reply #332 on: January 28, 2024, 08:44:47 AM »
I use high temp alu paste on bolts as exhaust spigots and spark plugs threads when needed.
Very high temp paste, +1100*C ;)
Very little needed.
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 denward17

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Re: 1976 Honda cb750K
« Reply #333 on: January 28, 2024, 10:00:32 AM »
Greg (the polisher) just texted me a photo of my sprocket cover. It’s the one I got from Bobco and was stained and corroded. I should have taken a “before” picture!

Beautiful!

I wonder how they get it so shiny.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #334 on: January 28, 2024, 02:21:00 PM »
Greg (the polisher) just texted me a photo of my sprocket cover. It’s the one I got from Bobco and was stained and corroded. I should have taken a “before” picture!

Beautiful!

I wonder how they get it so shiny.

It’s what he does and very good at it! He apologized because the generator was so badly corroded it ended up with some tiny “pores”! Looks OK to me.
« Last Edit: January 28, 2024, 05:30:16 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #335 on: January 28, 2024, 02:22:51 PM »
Mounted up the right side pipes (very clean, original HM341’s). Covers are ready, I’ll pick them up tomorrow. Pictures then.

Offline MauiK3

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Re: 1976 Honda cb750K
« Reply #336 on: January 29, 2024, 06:11:47 AM »
nice cover!
it's always an adventure what you find when polishing these old castings, they have a lot of "character"
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #337 on: January 29, 2024, 06:45:08 AM »
Removed the sprocket, transmission, alternator and clutch covers. Cleaned off the oil and am handing them off to a local guy that polishes aluminum. “Greg’s Metal Grinding and Polishing” in Oshawa, Ontario. Does fantastic work and reasonable charges.
I'm interested to know how much as I might polish some sets of covers.

Stu….. Cdn$150 for the four covers (cash only!).

Offline newday777

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Re: 1976 Honda cb750K
« Reply #338 on: January 29, 2024, 06:46:42 AM »
Removed the sprocket, transmission, alternator and clutch covers. Cleaned off the oil and am handing them off to a local guy that polishes aluminum. “Greg’s Metal Grinding and Polishing” in Oshawa, Ontario. Does fantastic work and reasonable charges.
I'm interested to know how much as I might polish some sets of covers.

Stu….. Cdn$150 for the four covers (cash only!).
That's a great deal!
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 BenelliSEI

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Re: 1976 Honda cb750K
« Reply #339 on: January 29, 2024, 01:36:32 PM »
Picked up this morning.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #340 on: January 29, 2024, 01:42:22 PM »
For those interested in alternator assembly; here it is back together. The inner “ring” goes in first. The wires from it fit in the slot first. The outer coil goes in and is a tight fit. You’ll know it is sitting correctly when the four retaining screws run in smoothly. I lean down hard on the impact tool to get a good bite and use the 8 mm wrench to give them and good pull.  Last bit is the metal locating tab that keeps the wires where they belong.The three screws come in from the outside to hold the inner “ring” get a small dab of sealant under their heads to prevent any oil drooling out there.

“Hondaman” suggests there are thin, copper sealing washers in there. I didn’t find any, so added the sealant instead.
« Last Edit: January 29, 2024, 03:09:25 PM by BenelliSEI »

Offline rocket johnny

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Re: 1976 Honda cb750K
« Reply #341 on: January 29, 2024, 01:44:57 PM »
i agree that is a sweet price for polishing and a nice job .  is he working just for beer money ?

Offline newday777

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Re: 1976 Honda cb750K
« Reply #342 on: January 29, 2024, 01:48:02 PM »
They look great John.
Hey did you figure out how to get the reset nob off the speedo?
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 BenelliSEI

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Re: 1976 Honda cb750K
« Reply #343 on: January 29, 2024, 01:48:36 PM »
This photo shows the wires tied in place and the cover back on the bike. They are colour coded. NOTE: I had the single white wire routed incorrectly. It stays in the sprocket housing and goes down, around the back of the transmission cover and then forward to the neutral switch. There should be a wire clip bolted under the main case to hold it up against the engine.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #344 on: January 29, 2024, 01:50:38 PM »
Both sides buttoned up. Added an oil pressure gauge for start up! Unfortunately the oil pressure switch is not sending a ground. I’ll leave it until after startup. Occasionally, they mysteriously free up and start working.
« Last Edit: January 29, 2024, 03:20:46 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #345 on: January 29, 2024, 01:52:21 PM »
Right side is almost done. Cleanup and install left side pipes next time. Then build a set of carbs.
« Last Edit: January 29, 2024, 03:10:45 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #346 on: January 29, 2024, 01:53:01 PM »
They look great John.
Hey did you figure out how to get the reset nob off the speedo?

Stu….. I didn’t need to. Someone else?

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #347 on: January 29, 2024, 01:56:53 PM »
i agree that is a sweet price for polishing and a nice job .  is he working just for beer money ?

Yep! He and his son both have full time jobs. This is a shed at the bottom of their yard that paid for a very nice fishing boat last year! They also have a small trailer with all their equipment, to go out to big rigs. Polish wheels, tanks, stacks etc….
« Last Edit: January 29, 2024, 01:59:18 PM by BenelliSEI »

Offline newday777

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Re: 1976 Honda cb750K
« Reply #348 on: January 29, 2024, 02:02:43 PM »
They look great John.
Hey did you figure out how to get the reset nob off the speedo?

Stu….. I didn’t need to. Someone else?
Maybe........hmmmm
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 denward17

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Re: 1976 Honda cb750K
« Reply #349 on: January 29, 2024, 02:19:57 PM »
Those covers look sweet!