Author Topic: 1976 Honda cb750K  (Read 26698 times)

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Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #350 on: January 29, 2024, 03:06:00 PM »
Those covers look sweet!

Thanks, Dennis! A bit of a pain taking them all off and reinstalling, but definitely worth it. The set of Yamiya case screws are well worth it!
« Last Edit: January 29, 2024, 03:15:23 PM by BenelliSEI »

Offline Stev-o

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Re: 1976 Honda cb750K
« Reply #351 on: January 30, 2024, 07:30:04 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.

 He apologized because the generator was so badly corroded it ended up with some tiny “pores”!

Hey John...I've had many polished covers on various bikes [Honda & Kawasaki] but have not seen aluminum with "pores" that large. Is it possible that is an aftermarket cover?
The polishing looks great...
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #352 on: January 30, 2024, 11:54:18 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.

 He apologized because the generator was so badly corroded it ended up with some tiny “pores”!

Hey John...I've had many polished covers on various bikes [Honda & Kawasaki] but have not seen aluminum with "pores" that large. Is it possible that is an aftermarket cover?
The polishing looks great...
[/qu
Steve…. It’s definitely an original. It was the last original one “Lash” or I had in “inventory”. I suspect this one lay in the dirt for a few years. It looks great from two feet away and I like it!

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #353 on: January 30, 2024, 11:56:53 AM »
#2 pipe is straight and reasonably shiny, but had a few pin holes on the backside. Spent a few hours and repaired it properly today. Grind clean, small steel weld, few drops of high heat silver. No one will ever see it, but it’s “right”. Moving ahead. Found a good, used oil pressure switch too.

One afternoon = one good pipe, one to go!

Next job is to clean up the shop. I can’t find the left rear foot peg, or a muffler connector tube that was delivered on Friday!!
« Last Edit: January 30, 2024, 05:02:39 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #354 on: January 31, 2024, 02:04:20 PM »
No progress today but picked up a great  4’ X 8’ aluminum trailer!
« Last Edit: January 31, 2024, 07:32:53 PM by BenelliSEI »

Online denward17

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Re: 1976 Honda cb750K
« Reply #355 on: January 31, 2024, 02:07:04 PM »
Nice trailer.....My neighbor has one similar that I used a while back, I like the lightness of aluminum.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #356 on: January 31, 2024, 02:13:17 PM »
Nice trailer.....My neighbor has one similar that I used a while back, I like the lightness of aluminum.

400lbs. empty. Been looking for one for ages. Very pleased.

Offline PeWe

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Re: 1976 Honda cb750K
« Reply #357 on: January 31, 2024, 08:22:24 PM »
Trailer for more bikes and parts? ;)
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 #358 on: February 01, 2024, 05:58:33 AM »
Trailer for more bikes and parts? ;)

Per….. you never know! We’ve always had a good, small trailer. Get’s used by the entire family (and friends)!

Offline grcamna2

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Re: 1976 Honda cb750K
« Reply #359 on: February 01, 2024, 10:24:40 AM »
Trailer for more bikes and parts? ;)

Per….. you never know! We’ve always had a good, small trailer. Get’s used by the entire family (and friends)!

John,I like that your new trailer has sides,as that will keep boxes of parts from rolling away  ;)
75' CB400F/'bunch o' parts' & 81' CB125S modded to a 'CB200S'
  I love the small ones too !
Do your BEST...nobody can take that away from you.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #360 on: February 01, 2024, 10:37:21 AM »
Bill….. it’s really well designed and fabricated. The floor is one piece 0.250” alloy checker plate and the sides are 0.125”. It’s all stitch welded together for lots of strength but lots of drainage too. All the wiring is captire, soldered and shrink wrapped connections, run inside the frame. Made locally by a family business. I’ve been trying to find a good used one for a while. Paid a fair price and very happy with it.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #361 on: February 01, 2024, 10:42:06 AM »
Got #1 and #2 pipe fully fitted up today. They’re not 100 pt. pipes, but very presentable with no rot. Just as I was cleaning up for the day (sort of), noticed a few drops of oil under the tank. I put two litres of oil in a few days ago and despite really cleaning the fittings and installing new aluminum washers, it appears the bottom one is “drooling”. Aarrgh.

I’ll give it an extra “pull” next time!
« Last Edit: February 01, 2024, 07:05:38 PM by BenelliSEI »

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #362 on: February 02, 2024, 12:27:03 PM »
Fixed my little oil drip today and spun the motor. Took 1/2 a minute to fill the oil filter (removed it to install the engine) and  then pumped +70 psi on the starter! Lots of oil in the top end. The oil pressure sending unit didn’t, so will try another one. Need to sort out a shifter and kick start lever and then build a set of fresh carbs. Good day.

Totally misplaced the LR foot peg. Anyone have an extra?
« Last Edit: February 02, 2024, 01:09:56 PM by BenelliSEI »

Offline lash

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Re: 1976 Honda cb750K
« Reply #363 on: February 02, 2024, 04:10:46 PM »
John, can you do some pics of the front signal wiring? Two wires or three? Where do they enter the headlight bucket? I am going to have to figure this out for the 74.:I have never built one later than 72.
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Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #364 on: February 02, 2024, 05:26:47 PM »
John, can you do some pics of the front signal wiring? Two wires or three? Where do they enter the headlight bucket? I am going to have to figure this out for the 74.:I have never built one later than 72.

Will do, but it’s simple. Two wire. Green ground wire goes to the ground lug on the inside securing nut for the headlamp pot. One side is fed by a black wire with an orange band on the end. The other is black wire with a light blue band. I can never remember which is which! J.

Offline newday777

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Re: 1976 Honda cb750K
« Reply #365 on: February 02, 2024, 05:42:35 PM »
John, can you do some pics of the front signal wiring? Two wires or three? Where do they enter the headlight bucket? I am going to have to figure this out for the 74.:I have never built one later than 72.

Will do, but it’s simple. Two wire. Green ground wire goes to the ground lug on the inside securing nut for the headlamp pot. One side is fed by a black wire with an orange band on the end. The other is black wire with a light blue band. I can never remember which is which! J.
Don't forget the blue with white stripe and the orange with white stripe (running amber lights).
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 #366 on: February 02, 2024, 08:17:10 PM »
John, can you do some pics of the front signal wiring? Two wires or three? Where do they enter the headlight bucket? I am going to have to figure this out for the 74.:I have never built one later than 72.

Will do, but it’s simple. Two wire. Green ground wire goes to the ground lug on the inside securing nut for the headlamp pot. One side is fed by a black wire with an orange band on the end. The other is black wire with a light blue band. I can never remember which is which! J.
Don't forget the blue with white stripe and the orange with white stripe (running amber lights).

Stu…. I don’t think his cb750K4 has the running lights on the front, nor does my K6. I think they’re only on my K7 and K8?

Offline lash

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Re: 1976 Honda cb750K
« Reply #367 on: February 02, 2024, 09:02:38 PM »
Wiring diagram for the K3-K7 shows 3 wires. Blue, blue/white, green for right and orange, orange/white, green. for left.
Analog mind in a digital world..

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #368 on: February 03, 2024, 05:18:01 AM »
Wiring diagram for the K3-K7 shows 3 wires. Blue, blue/white, green for right and orange, orange/white, green. for left.

So if your harness has the solid light blue and solid orange feeds in the headlight, you have front running lights, and will need the same wires in your front turnsignals. Blue is the right running light, blue/white(small band usually) is the turn signal and green for ground.

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #369 on: February 03, 2024, 07:50:14 AM »
Pipes are on. Strangely missing the LEFT rear foot peg. Got one?

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #370 on: February 03, 2024, 07:52:36 AM »
For some reason I have TWO right side cb750K6 passenger foot pegs. Does anyone have a LEFT rear extra?? The bracket would be angled to the left when laid out the same way as in this photo. It has a full washer and “C” washer spot welded to the back of the mounting hole……

Offline lash

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Re: 1976 Honda cb750K
« Reply #371 on: February 03, 2024, 07:58:13 AM »
I will check..
Analog mind in a digital world..

Offline BenelliSEI

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Re: 1976 Honda cb750K
« Reply #372 on: February 03, 2024, 08:58:19 AM »
I will check..

Thanks. I have to look harder too! In this picture, taken on Nov. 9th when I started this, that is clearly the missing foot peg!

Offline PeWe

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Re: 1976 Honda cb750K
« Reply #373 on: February 03, 2024, 09:00:22 AM »
Under the lift?
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 newday777

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Re: 1976 Honda cb750K
« Reply #374 on: February 03, 2024, 10:24:29 AM »
I don't know yet if I have an extra yet as I have the 76 projects and only have eyes on 1 set.
BTW 75 and 76 use the curved mount, where as 74 and earlier are straight brackets
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