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Thread: Doing up a '73 CB750K

  1. #1
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    Default Doing up a '73 CB750K

    Like I didn't have enough on my hands with the various motorcycles (Norton N15CS, GS1100E, Ducati Multistrada, Yamaha XT350), Airstream camper, Willys wagon, house, bicycles, etc, but I'm working on a '73 CB750K. The motor's ready to reassemble and I've got powder coating done on frame bits, and refurbished the gauges.

















    Last edited by oldGSfan; 09-25-2020 at 08:43 PM.
    Tom

  2. #2
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    Not surprisingly, excellent work, Tom.
    Love the look of the speedo. Restored but not new. Have seen some where the white lettering/orange needle is too bright.
    2@ \'78 GS1000

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    I think those old Honda motors are the prettiest of the I4s.
    "Thought he, it is a wicked world in all meridians; I'll die a pagan."
    ~Herman Melville

    2016 1200 Superlow
    1982 CB900f

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    Nessism is offline Forum LongTimer GSResource Superstar
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    Presumably this is a flipping project?

  5. #5
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    GS1I50Pilot - I have to agree with you.

    Nessism - don't know yet but probably a keeper. I don't tend to flip the bikes I really like and put a lot of work into, only for ones I know I can make $ on with a little effort.

    I remember looking down on the CB750s as a dumb teen, because my older brother had a KZ900 and I thought the CB looked porky and old fashioned. In the 90's after several KZs and GS liter bikes I found a '75 for $200 and fixed it up. I had just bought my 1st home and was broke. I had low expectations. I rode it for 3 years and sold for $1K only because I was moving overseas. I really fell in love with the sweet nature of that bike, it made me smile every time I took it out. My son is casting his eye on the CB but he's got to learn first on the XT350, trail riding first and then we will ride together, me on the GS1100 and him on the Honda perhaps. I take him on Ducati rides and tell him everything I know about riding safe (we have Cardo setup to talk).

    Keanu Reeves was at the local San Clemente Cars & Coffee this AM on is bike, and my son was bummed I didn't take the GS - we usually go. I would have but I am replacing the front master cylinder and don't want brake fluid on my nice paint. I told him I'm cooler than Keanu anyway.

    Today I painted the frame with Rustoleum epoxy appliance paint. It's drying now, that paint is cheap and tough. Other frame stuff is powder coated but I didn't want to take too much advantage of my free powder coating from my neighbor.
    Tom

  6. #6
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    On my '66 Norton N15GS that I picked up for $150 last month - the tanks (oil and fuel) were custom painted and lettered/striped. Really nice work. Both were signed 'Bartee '94' on the back sides. I found a Facebook page for a business and also personal one of a very talented painter Timothy Bartee - lots of bike stuff, very nicely done. He has a company 'Designs in Lines' in Riverside CA, and had posted about my oil tank just a couple days before I bought the bike in September. He said 'due to a series of unforeseen circumstances' the owner had picked up the gas tank a few years ago but not the oil tank ($ ?) and he didn't have a pic of the fuel tank to share. Well now he does as I sent one to him. He is only one county over to me and when I get a replacement side cover, which is missing, I'll have him match it to the oil tank. I guess the PO was tying up loose ends and moving on (leaving the state).

    Tank still has newspaper in the filler neck from '94, never mounted.

    Tom

  7. #7
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    Still waiting to hear the turbo EZ.
    1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

    2016 XL883L Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

  8. #8
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    Well I can't ride it till I figure out the leaking master cylinder. My son took a brief video of me riding away 1st ride but not sure it's really much to see. I'll ask him for it and see if it's worth it to post. Soon I am going to tear top end off to fix leaks.

    Quote Originally Posted by Rob S. View Post
    Still waiting to hear the turbo EZ.
    Tom

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    The last two CB750 sohc engines I've done needed a LOT of helicoils. The heads particularly - all the 6mm screws - seem prone to overtightening.
    And the early diecasting alloy hasn't stood up well in a lot of cases

    Are you vaporblasting before painting ? Very niice finish..

  10. #10
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    Well I was lucky with the screws, took great care to clean and lightly lube, and all took the torque needed. I put in HD APE studs that torque to 22 vs 15 lbs too. Made a chaser from an old stud for the case threads.

    I didn't vapor blast, cleaned by hand then soda blasted, then cleaned some more. I wanted to vapor blast but the quote was $200 for two pieces which seemed a bit excessive. I know it's nice but I got it looking decent my way with free elbow grease mainly.

    I am ready to mount the frame...






    Quote Originally Posted by GregT View Post
    The last two CB750 sohc engines I've done needed a LOT of helicoils. The heads particularly - all the 6mm screws - seem prone to overtightening.
    And the early diecasting alloy hasn't stood up well in a lot of cases

    Are you vaporblasting before painting ? Very niice finish..
    Tom

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