Author Topic: CB750 K1. Dont drink and ebay project....  (Read 43636 times)

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Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #100 on: July 25, 2011, 05:01:05 pm »


almost looks like a motorcycle....lol

Got a "new" seat.

going to get it to a roller this week and really start cracking away

Offline Terry in Australia

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Re: CB750 K1. Dont drink and ebay project....
« Reply #101 on: July 26, 2011, 06:08:20 am »
Looking good mate, keep up the good work! 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 jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #102 on: July 26, 2011, 07:45:22 pm »
thanks terry.....its slow and steady right now....

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #103 on: August 02, 2011, 02:15:30 pm »
Got some tins for the bike!


what can brown do for you?
My uncle was a UPS executive so its kind of funny to have a brown bike...


got a clean front fender now





need to see what it will take to restore this seat....


Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #104 on: August 02, 2011, 06:41:20 pm »

larger master for the dual disc set up
I have to double check that the bore will work but its off a DOHC CB750 with single pots so i would think that its fine



Adjustable clubmans fit great.

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #105 on: August 06, 2011, 02:28:38 pm »
Does Torazzi make a fork brace for the early Cb750s?
cant seem to find one but thought that they did.
If they do can it be used with a stock front fender?

If not any links to fork braces that bolt on and work with the stock fender?

Offline lucky

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Re: CB750 K1. Dont drink and ebay project....
« Reply #106 on: August 06, 2011, 06:08:18 pm »
Tarozzi rearsets are $566.00!!!

Sure you wanna do that?

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #107 on: August 06, 2011, 06:27:54 pm »
Tarozzi rearsets are $300ish.....where did you see 566?
I spent $300 on the ones for my F and i LOVE them

im looking for a matching fork brace like i have on my F....

Offline Terry in Australia

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Re: CB750 K1. Dont drink and ebay project....
« Reply #108 on: August 07, 2011, 04:04:03 am »
You won't find a fork brace for an early CB750 mate, (well they did do one type of brace but you'd have to lose your fender) I'm running K8 forks on my K1, the aluminum sliders are longer than those on early K's and allow a conventional fork brace, like the Telefix brace on my bike. Looking good mate, although I'm not sold on the K0 sidecovers. 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 jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #109 on: August 07, 2011, 07:45:23 am »
so there is a k1 brace but cant run a fender?

why not on the K0 covers?
they are in super nice shape and came in a barter deal.
Im sending then and my chain guard to franken to repop so i might have a set of finned K covers coming out of that deal so maybe ill just keep the K0s for something else but not really sure

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #110 on: August 07, 2011, 08:56:52 pm »
I need an education in swing arm bearings.
kind of thinking bronze for this bike instead of the needle bearings i used on my F but not 100% sure

I see that the early bike have different bushing then the later ones
one has lip and the other doesn't, but heard of some people using latter ones on early bike and swaping around spacers???
why?

bronze or needle bearings?

Offline burnoutking1971

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Re: CB750 K1. Dont drink and ebay project....
« Reply #111 on: August 07, 2011, 09:42:14 pm »
Hi, thanks for sharing. I had to chuckle at the "don't drink and ebay" comment. I did that once myself bid on something thinking there is no way I will win, anyway 6 days later I owned the item. Nice job on the project though!
:)

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #112 on: August 11, 2011, 06:21:45 pm »
Hi, thanks for sharing. I had to chuckle at the "don't drink and ebay" comment. I did that once myself bid on something thinking there is no way I will win, anyway 6 days later I owned the item. Nice job on the project though!

thanks very much.
yeah ebay is dangerous some times...
and having it on my Iphone doesnt help anything....lol

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #113 on: August 11, 2011, 06:21:58 pm »
Im still on the fence about the bushings but im thinking that ill run the bronze.  need to order them this week.

A new Avon rear is in the mail.
Also need to order some OEM stuff like forks seals.

Soon i hope to start the engine work she needs. 

Offline Rookster

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Re: CB750 K1. Dont drink and ebay project....
« Reply #114 on: August 11, 2011, 09:27:51 pm »
I used new bronze bushings in my K1.  The ones I cut out did not have a lip and looked just like the new ones.  You may have to hone the bushings after driving them in.
Scott

Offline Terry in Australia

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Re: CB750 K1. Dont drink and ebay project....
« Reply #115 on: August 13, 2011, 04:31:34 am »
so there is a k1 brace but cant run a fender?

why not on the K0 covers?
they are in super nice shape and came in a barter deal.
Im sending then and my chain guard to franken to repop so i might have a set of finned K covers coming out of that deal so maybe ill just keep the K0s for something else but not really sure

G'Day Mate, well, K0 covers look great on K0's, but not so much on later model bikes, and I don't know why someone would match a set of K0 sidies to a K3 or later tank like that one, it just doesn't look right to me? Just my opinion though mate, so don't take it as criticism, otherwise I really like your build, and obviously everyone's got their own opinion of what looks good and what doesn't.

I'm not sure if the right side cover will work with your K1 oil tank either, I know that you can't fit later covers on a K0 unless you change the oil tank for a later one, but I'm not sure about what'll work the other way around? I'd run with the finned sidies, they look great, and much more "sporty" than the K0's.

Bronze swingarm bushes are superior to needle roller bearings, they'll withstand much more shock (less brittle, with more surface area) and aren't as badly affected by water, (power washers kill needle roller bearings) and need far less maintenance. You're right about the difference between the old and new styles of bushes, but I prefer the old design, as it allows for a felt seal (or a fat "O" ring) to go between the outer cup and the bush to prevent the ingress of water.

The fork brace I'm referring to is a "Tube Brace" made from two pieces of bent tube that follow the contour of the front tire with metal plates in between mounted to the inside of the forks. They were a neat piece, but pretty hard to find nowadays. 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 jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #116 on: August 13, 2011, 06:41:54 pm »
yeah im not sure about the K0 covers but ive got a while before i need to figure that out.
Like the idea of that "tube brace"  kinda cool/


Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #117 on: August 13, 2011, 06:42:05 pm »




She needs chains and guides and i was thinking about sending the crank to APE to have it lightened and balanced...
Plan is to blue print the engine.
Not sure about just keeping it standard size (.25 if it needs it) or jumping up to a 836?
I want to keep it on a budget and not just throw money at it so....im not sure
Heard some place that the early rotors are crazy heavy compared to the latter ones???? is that true?



wonder how that got there?

Offline Terry in Australia

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Re: CB750 K1. Dont drink and ebay project....
« Reply #118 on: August 13, 2011, 06:47:57 pm »
Replacement cases after a chain broke and ate the originals?  :-\
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 jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #119 on: August 13, 2011, 08:46:57 pm »
They are stamped and the stampings look original....
I think at one time the head was off of the motor but cant really tell if the cases had ever been split.
what sealant did honda use on the cases?

Offline Terry in Australia

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Re: CB750 K1. Dont drink and ebay project....
« Reply #120 on: August 14, 2011, 01:34:24 am »
They are stamped and the stampings look original....
I think at one time the head was off of the motor but cant really tell if the cases had ever been split.
what sealant did honda use on the cases?

Honda had their own sealant, I remember buying a tube of it when I rebuilt my first CB750K1 in 1982. It was grey in color and looked an smelt much like Threebond 1140. 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 MCRider

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Re: CB750 K1. Dont drink and ebay project....
« Reply #121 on: August 14, 2011, 06:04:25 am »
As to the question of rotor weight, yes the early ones were the heavy ones, as yours is. The flange around the rotor thats adjacent to the large starting gear, is removed in your case to make it lighter. It is already gone on the later rotors by Honda. However even on the later rotors you can take another pound off by further machining, chamfering of edges etc.  I think APE can do it for you.

I always thought lighter was better but I have run into schools of thought saying you can go too far. Making them lighter will improve engine response but at the loss of smoothness of shifting and other benefits a little flywheel weight can give.

Dynoman says go easy on lightening as it reduces the 60ft times on their dragsters, better to leave some weight on. The later Honda rotors are the good compromise perhaps.
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 jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #122 on: August 14, 2011, 07:08:23 pm »
As to the question of rotor weight, yes the early ones were the heavy ones, as yours is. The flange around the rotor thats adjacent to the large starting gear, is removed in your case to make it lighter. It is already gone on the later rotors by Honda. However even on the later rotors you can take another pound off by further machining, chamfering of edges etc.  I think APE can do it for you.

I always thought lighter was better but I have run into schools of thought saying you can go too far. Making them lighter will improve engine response but at the loss of smoothness of shifting and other benefits a little flywheel weight can give.

Dynoman says go easy on lightening as it reduces the 60ft times on their dragsters, better to leave some weight on. The later Honda rotors are the good compromise perhaps.

yeah a motor needs some type of flywheel.
Im ok with some "issues" with the light weight crank but im not looking to build and all out monster.  just something slightly better then stock.
needs to be a very useable and reliable street motor

Offline jaguar

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Re: CB750 K1. Dont drink and ebay project....
« Reply #123 on: August 14, 2011, 07:08:41 pm »
Anyone use these fork boots?
http://www.cb750supply.com/products/3/suspension/52/fork-tubes-fork-seals
they are 1/3 the price of OEM but are they any good?

also lets hear some thoughts on the $110 836 kit

Offline MCRider

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Re: CB750 K1. Dont drink and ebay project....
« Reply #124 on: August 14, 2011, 07:19:15 pm »
IF you lighten the crank, tell APE to go easy. If its mainly a street/road bike, you may want to leave the rotor, heavy, take a few lbs off the crank and go with that.  The 750 is a clunky shifter anyway and the hair trigger response of a lightened power train doesn't help that any. also cruising thru towns in third gear, stuff like that, will be more comfortable with a little weight. IMO. I ran a super light combo on my 888 mostly touring, and occasionally wished it was a smoother rig. After a long day on the highway, you lose the romance of the twitchy on/off response.

I'll be running it super light again, but i know what I've done. Those parking lot throttle blips are impressive.
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."