1964 Honda S90



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Thread: 1964 Honda S90

  1. #1

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    1964 Honda S90

    With my Honda CT90 winding down, I cracked and picked up an S90 for a couple hundred bucks a few months ago





    The tear-down:




    This project could end before it really started though. The serial is S90-468404. Unfortunately, Service Ontario tells me this was never registered in Ontario. My only chance to get this bike on the road is to find the last region (province or state) in which it was registered on the road. This is the longest of long-shots, and this is coming from the guy who has transferred bikes without ownership papers before.

    I confirmed with Manitoba that it was never registered there. Quebec would be next, but they require a Quebecois license to get a vehicle history. And they work bankers hours too. But I will keep at it. I have already contacted Honda on a Hail Mary, too. I don't know why I'm doing this, but it's a cool bike and I would hate the buck to stop with me.
    '08 naked GS500 with many many mods
    Quote Originally Posted by Hackandslash View Post
    Tricky may be my father

  2. #2
    Riceburner's Avatar
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    Re: 1964 Honda S90

    You are a glutton for punishment. Keep it up.

  3. #3
    JavaFan's Avatar
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    Re: 1964 Honda S90

    a literal basket case

    good luck

    the sworn affidavit routine won't work to get a reg?

  4. #4

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    Re: 1964 Honda S90

    Quote Originally Posted by JavaFan View Post
    the sworn affidavit routine won't work to get a reg?
    Short VIN doesn't make anyone's life easier.

    Worst case, that looks a lot like a CT-90 to me You do good enough work, I'm sure you can "find" the appropriate manufacturers plate.

  5. #5

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    Re: 1964 Honda S90

    Quote Originally Posted by JavaFan View Post
    a literal basket case

    good luck

    the sworn affidavit routine won't work to get a reg?
    Quote Originally Posted by GreyGhost View Post
    Short VIN doesn't make anyone's life easier.

    Worst case, that looks a lot like a CT-90 to me You do good enough work, I'm sure you can "find" the appropriate manufacturers plate.
    The ADVRider forum has been great, right out the gate several members offered advice and help, suggesting routes through South Carolina, Tennessee and Vermont to get it titled via the "barn find" route. The problem with that is then importing it back into Canada, I may need it to be fully operational for that to happen, I'm not 100% sure.

    I have friends in Quebec who will help me run the VIN there and see if anything shakes loose. I have an inquiry in with Service Ontario to see what can be done, maybe we can go the affidavit route. I am also hoping that any day, Honda emails me telling me they know where they sold it, but I know that's a pipe dream!

    Quote Originally Posted by Riceburner View Post
    You are a glutton for punishment. Keep it up.
    I originally bought it mostly for the parts, it has some commonality with the CT90. But then I ****ed up and sat on the bike when I got it back home, and all plans of parting it out disappeared immediately

    I'll take your input on colour this time around! It's time I put together a bike that wasn't grey or black

    In the meantime, I'm gonna come up with a list that puts me on a path to a rolling chassis.
    - Clean and paint the frame, tank, swingarm, and fork ears the appropriate colour
    - Clean up fenders, triples, forks, handlebars, rear brake lever. I'm not yet if they are real chrome or just silver paint
    - Clean and paint miscellaneous stuff black (rear brake light bracket, center stand, rear brake torsion arm, etc)

    Need new:
    - Tank emblems (most important)
    - Tubes, tires, rims and spokes
    - Brake shoes
    - Headlight bucket and headlight
    - Chain and sprockets
    - Seat cover
    - Rear shocks
    - Fork gators (maybe? I may have an extra set from the CT90)
    - Fuel petcock (probably)
    - Indicators

    If I missed something, don't hesitate to let me know
    '08 naked GS500 with many many mods
    Quote Originally Posted by Hackandslash View Post
    Tricky may be my father

  6. #6

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    Re: 1964 Honda S90

    What's the prognosis for the motor in a box? Terminal/repairable/completely unknown?

    Any ideas on why someone took the bike apart in the first place?

  7. #7

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    Re: 1964 Honda S90

    Quote Originally Posted by GreyGhost View Post
    What's the prognosis for the motor in a box? Terminal/repairable/completely unknown?

    Any ideas on why someone took the bike apart in the first place?
    It's not great. The motor came with no head, the jug is there though. I don't think terminal, nothing too serious popped out at me. But it will need the whole 9 yards, top and bottom, new everything, bore it out a size (or more) up. The piston was pretty scored on one side if I recall correctly

    Probably what I will do is rebuild the motor when I rebuild my CT90 motor. I want to do those two motors right, learning (instead of paying someone else) to measure and true the cranks, etc, etc. But right now on my desk are two 400 2-stroke motors with more priority. If I get the rolling chassis for the S90 done, or far enough along, I can go with another Lifan 125 until the original motor is rebuilt

    The story, as I'm told by the guy who sold it, his dad got the bike in lieu of a cash payment for some mechanical work done. The bike sat for 15 or 20 years, with the dad intending on restoring it, but he passed away. Even 15-20 years ago, the bike would have been 35-40 years old, so maybe someone along the way started to rebuild the motor and quit, I suppose
    '08 naked GS500 with many many mods
    Quote Originally Posted by Hackandslash View Post
    Tricky may be my father

  8. #8

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    Re: 1964 Honda S90

    I am still working on figuring out a path to titling the bike.. but in the meantime! I got distracted by the S90 gas tank today while trying to clean the garage

    I thought it was cool that the chrome side panels come off pretty easy


    And luckier still that the rubber pads came off without the rubber disintegrating!


    I had some old Quick-Glo lying around, and it worked really well in cleaning up the chrome side panels




    I think the Quick-Glo has some rust preventative properties which should stop the chrome pitting from getting worse. The backs of the side panels weren't chromed, and they had some rust, so I used a rust converter to stop it from getting worse. I sauced both side panels liberally in WD40 and put them on the backburner for now

    The gas tank is a little sad, but I've seen worse


    I just took some simple green and a tooth brush, and took off some of the grime


    It's not great, the rust spots on the top of the tank are an eye sore. The paint under the chrome panels is flawless though! The inside of the tank has some mild rust spots, but its not bad at all.

    I'm not sure if I'm going to do anything about this gas tank for the time being. I think I may focus my efforts on making sure the frame, swingarm, wheels and forks are brought back to top-notch shape. The cosmetic imperfections like this tank's rust spots, or the fenders, can be further down the list I suppose, once the bike is running.
    '08 naked GS500 with many many mods
    Quote Originally Posted by Hackandslash View Post
    Tricky may be my father

  9. #9

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    Re: 1964 Honda S90

    Spent some more time going over the parts today...

    Handlebars


    The controls were a little grimy



    I blew some of the dust off the ultrasonic cleaner and started up a brew


    Some time in the cleaner took off the majority of the grime. The switches seem to work good, I do see a few wires which will need to be repaired though


    The handlebars are looking ok! They definitely have a story to tell though


    In the future, I will fix up the wiring inside the switches, then put the handlebars back together as a unit. On these bikes it is a bit of a pain, because the wiring is run through the inside of the handlebar

    Onto the front of the bike,


    Many spiders have called this bike their home


    Scrubbing the lower triple. It has some surface rust, I think I will throw a coat of paint on it in the near future


    One of the forks


    I got stuck for about 30 minutes at this part of the disassembly, until I found that whole chrome cap on the left side comes off and the fork seal is contained within it. Shout out to Steves Workshop (http://www.steves-workshop.co.uk/veh...orkrebuild.htm) for showing me how to solve that riddle


    The oil in there was like a thick chocolate milk


    Ultrasonic round 2, with most of the fork components


    I put them back together after a cleaning and thorough rinsing in WD40. The tops and bottoms of the forks aren't great, but I think thats mostly cosmetic. The working area on them is still pretty good, there are some score marks but all in all they are OK I think (the top one in this picture is compressed). I did order new fork seals, but they aren't here yet


    I will try these forks out on the bike. If there are big issues with their performance, I can either try the original CT90 set that I have in storage (I put new heavy duty forks on the CT90), or I could get a new set. We'll see, but I am trying not to spend money where I don't have to
    '08 naked GS500 with many many mods
    Quote Originally Posted by Hackandslash View Post
    Tricky may be my father

  10. #10

    Re: 1964 Honda S90

    "I have an inquiry in with Service Ontario to see what can be done, maybe we can go the affidavit route. I am also hoping that any day, Honda emails me telling me they know where they sold it, but I know that's a pipe dream!"

    Its not likely Honda Canada has any record. It was imported when Manley's was the distributor.

    "The tops and bottoms of the forks aren't great, but I think that's mostly cosmetic. The working area on them is still pretty good, there are some score marks but all in all they are OK I think."

    Handy trick from a friend - fill the score marks with Super Glue and then wipe them down. Hard to believe but it works.



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