Author Topic: 1975 CB750 K Cafe Build  (Read 1610 times)

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Offline Monkeyboy

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1975 CB750 K Cafe Build
« on: April 15, 2015, 06:59:59 PM »
So I'm starting this thread a little bit late.  I acquired my bike about a year ago.  I had been sitting since 1996 but was in decent looking shape.  I brought it home, drained the fluids, cleaned the carbs, checked the tank, topped her off, and then rode it for about a month.  At that point the ignition crapped out and I opted to upgrade to a PAMCO kit.  Off I went for another month or two when it shut down on me in the greatest part of town.  I managed to get it running again only for it to start blowing the main fuse non stop. 

So, she sat for the winter while I debated on what path to take.  About a month ago I finally broke down and ordered a new blade style fuse block since the original had arced and melted a bit.  No go, still blowing fuses.  I began isolating each circuit to track down the problem and eventually stood back, took a look around, and said screw all this ancient wiring.  I decided that if I could wire a few dozen strain gages on the side of a railroad car (Im a R&D test tech in the rail industry) I could certainly rewire a motorcycle.  That has yet to be proven...

While waiting for my terminal kit to arrive (I wanted the right bullet connectors) I decided to order a Rick's reg/rec to go with the new fuse block, coils, and Pamco setup.  That led me to purchase a new starter solenoid.  Since I was going to be waiting for those parts I decided to pull the front end off and replace the steering bearings.  Of course the forks were off so I NEEDED a pair of clip ons and new headlight ears.  Wouldn't you know the forks were pitted all to hell and ugly as sin under those factory ears so the fork tubes had to go.  Since they were torn apart the lowers needed polished.  As you can see this simple wiring project is turning in to a full on build.  I have been putting in at least an hour a night trying to continuously make progress. 

So far I am in the torn down stage with small tasks being completed.  On my bench right now are the fork lowers being cleaned up while I wait for the tubes to arrive. 

The shot fork tubes.  They are still good enough for a stock bike with the large headlight ears.  Not gonna work for me though. 



One of the fork lowers in the process of being cleaned up.  I'm not sure if I am going to paint them or anodize them yet.



Installed a set of Cycle X Shorties.  I'll be removing 2" from the front springs and adding spacers to the dampeners to level out the front.



The headlight bucket was a little rough but workable so it was sanded down and had a few spots filled.  It has since been painted gloss black and is waiting to be assembled. 



I snagged this seat for fellow forum member GoldenArrow.  Its a little rough but certainly salvageable.  I'll be working on that a bit tomorrow in between finishing up the fork lowers. 



I also have a set of clip ons, some BiltWell grips, bar end mirrors, Carpy 4-1 exhaust, and a few other odds and ends waiting to go on. 

Offline Restoration Fan

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Re: 1975 CB750 K Cafe Build
« Reply #1 on: April 19, 2015, 05:46:30 AM »
Good progress so far.  Subscribed.
Ron

Stella - Logan's Senior Project    78 750K http://forums.sohc4.net/index.php?topic=141761.0

Logan's Reward - CB500 and CB550 Cafes    http://forums.sohc4.net/index.php/topic,147787.0.html

Offline gcthemachetes

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Re: 1975 CB750 K Cafe Build
« Reply #2 on: April 19, 2015, 05:51:42 AM »
Got a little more work done on the fork lowers on Friday.  Time permitting I will be welding the seat up today and getting the factory hinges removed from the bike.  I also scored a bunch of parts yesterday.  Complete front wheel with disk, two other discs, starters, engine covers.  More cleaning to do...

Offline Monkeyboy

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Re: 1975 CB750 K Cafe Build
« Reply #3 on: April 29, 2015, 02:30:31 PM »
Well, this past week has been a bit slow.  Started the body work on the seat and it should just need a little more sanding.  Also grabbed a few boxes of parts from a local guy for $75 bucks so I have been going through those to see what I can use and sell.  Will update with pics of the seat ASAP.  I'm also still waiting on my fork tubes to show up so I can get the front end back together.