Author Topic: Dewey’s CB750 K2  (Read 8401 times)

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Offline SanDogDewey

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Dewey’s CB750 K2
« on: January 23, 2022, 06:23:19 PM »
Just for reference a CB750 and 2 motors will fit in the back of a Toyota Tacoma.

And so it begins…

Offline Stev-o

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Re: Dewey’s CB750 K2
« Reply #1 on: January 24, 2022, 08:25:50 AM »
... a CB750 and 2 motors will fit in the back of a Toyota Tacoma.


Ha, good to know, I have a Tacoma.  You building a bike with two motors?!
Russ Collins did it!


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

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #2 on: January 25, 2022, 06:44:51 AM »
Quote
You building a bike with two motors?!
Russ Collins did it!

No, I think I’ll stick with one. I think it will corner better! Lol

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #3 on: January 27, 2022, 05:49:18 PM »
Got a lift today from HF. Should make things a bit easier. None of the local HF stores had a 1000 lb engine stand. They’re supposed to have some next month,

Offline RAFster122s

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Re: Dewey’s CB750 K2
« Reply #4 on: January 30, 2022, 08:40:39 AM »
A flat platform style scissors jack is handy if you have room between the exhaust pipes to reach the frame rails.. allows you to pull the front end apart or without a center stand it can help you lift the rear end to pull wheel etc...
David- back in the desert SW!

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #5 on: February 02, 2022, 06:18:43 PM »
Getting parts on order! This is my tracking system. I highlight the parts as I order them. I also write on the invoice what drawing the part belongs to so I know where the part goes.

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #6 on: February 02, 2022, 06:20:21 PM »
Forks are pretty rough but they didn’t leak! The tops are pretty pitted and rusty.

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #7 on: February 02, 2022, 06:21:35 PM »
Electrical is toast. This pin was welded to the socket. New harnesses ordered.

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #8 on: February 02, 2022, 06:38:51 PM »
Tires came today. I’ve got some work to do before these get mounted up. Front and rear hubs are getting replaced.

Offline Stev-o

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Re: Dewey’s CB750 K2
« Reply #9 on: February 03, 2022, 07:17:19 AM »
Getting parts on order! This is my tracking system. I highlight the parts as I order them. I also write on the invoice what drawing the part belongs to so I know where the part goes.

Wow, that is quite a system, good on you!

Continentals are great tires, have them on my Kawasaki, you will really like them 
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline kghost

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Re: Dewey’s CB750 K2
« Reply #10 on: February 15, 2022, 04:21:38 AM »
Is that my old one?
If so...Here's what it looked like back in the day....
And yes...it needed an oil cooler in 100° South Texas summer heat.
Stranger in a strange land

Offline BenelliSEI

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Re: Dewey’s CB750 K2
« Reply #11 on: February 15, 2022, 06:07:12 AM »
Getting parts on order! This is my tracking system. I highlight the parts as I order them. I also write on the invoice what drawing the part belongs to so I know where the part goes.

Clever..... good to have the space! Fork tops look rough, but usually come apart OK.

Offline MauiK3

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Re: Dewey’s CB750 K2
« Reply #12 on: February 15, 2022, 07:36:51 AM »
Nice tires, they are on my K3.
A pair of knockoffs are on my Z1
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #13 on: February 15, 2022, 09:04:43 AM »
Quote from: BenelliSEI
Clever..... good to have the space! Fork tops look rough, but usually come apart OK.

Got them apart and new fork tubes have been received. Waiting on the seals now.

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #14 on: February 15, 2022, 09:07:16 AM »
Quote from: kghost
Is that my old one?

Yes, that’s the one.

Offline Don R

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Re: Dewey’s CB750 K2
« Reply #15 on: February 15, 2022, 12:55:06 PM »
 I put the Conti twins on the nugget. I'd like to say I like them but they are still wearing their nubs so I really don't know. They rode to the car wash, to the park for pics and back home. A couple miles, tops.
No matter how many times you paint over a shadow, it's still there.
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Offline kghost

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Re: Dewey’s CB750 K2
« Reply #16 on: February 15, 2022, 05:12:18 PM »
Quote from: kghost
Is that my old one?

Yes, that’s the one.

I'll see if I can drag out some more photos if you like...
Stranger in a strange land

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #17 on: February 20, 2022, 08:55:55 PM »
Started building up the bars and noticed the left switch was rotated more forward than the right. Bars are drilled wrong. Waiting on word from supplier. Do yourself a favor and spray a little silicon on the inside of the bars to make the wires slide through more easily.

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #18 on: February 20, 2022, 08:59:25 PM »
Quote from: kghost
I'll see if I can drag out some more photos if you like...

…of the girl or the bike?

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #19 on: February 22, 2022, 06:07:45 PM »
Got the forks mostly rebuilt today. Bolted the lowers to the engine stand to resurface them. Worked out pretty well. There are still some small dents still in them as I didn’t want to sand the down any further. They didn’t leak, but the tops were heavily pitted. The piston (item 7 on parts breakdown) would spin freely on the old fork. It was tight getting the bottom snap ring on and it doesn’t spin now. Is this an issue?
« Last Edit: February 22, 2022, 06:09:19 PM by SanDogDewey »

Offline BenelliSEI

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Re: Dewey’s CB750 K2
« Reply #20 on: February 22, 2022, 06:23:17 PM »
Mine tightened up the same way, should not be a problem. Is the “ ring” above it still able to spin and rattle in it’s space? I like the use of the stand! New master cylinder?
« Last Edit: February 22, 2022, 06:25:32 PM by BenelliSEI »

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #21 on: February 23, 2022, 07:38:26 AM »
Mine tightened up the same way, should not be a problem. Is the “ ring” above it still able to spin and rattle in it’s space? I like the use of the stand! New master cylinder?

Yes, the damper valve still spins freely. New master cylinder, the one on the bike had lost all the black anodizing.

The stand worked great, allows you to rotate them, but I got some streaking when I cleaned the fork lowers with AlumPrep 33. I’ll restrip, clean and scotch-brite them. My first time going for an original look. I’ve polished or powder coated everything on previous bikes.
« Last Edit: February 23, 2022, 07:39:57 AM by SanDogDewey »

Offline HondaMan

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Re: Dewey’s CB750 K2
« Reply #22 on: February 23, 2022, 05:03:16 PM »
Got a lift today from HF. Should make things a bit easier. None of the local HF stores had a 1000 lb engine stand. They’re supposed to have some next month,
I use these:
http://www.tcbroschoppers.com/honda-cb750-engine-stand.html
and now they cost $20 less than when I bought mine!
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

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Offline SanDogDewey

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Re: Dewey’s CB750 K2 - Gauge Paint
« Reply #23 on: March 14, 2022, 06:02:41 PM »
Got the gauges rebuilt today. Still need to paint the ends of the needles and the “blue” on the inner liner. What is a good color match for these two? Testors orange fluorescent paint?

Used new glass, housings, crimp rings, gaskets and face dials from Yamiya.
« Last Edit: March 14, 2022, 06:21:36 PM by SanDogDewey »

Offline SanDogDewey

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Re: Dewey’s CB750 K2
« Reply #24 on: March 14, 2022, 06:06:28 PM »
Also got the front forks and handle bars assembled. I ended up using Super Bike bars from Yamiya.