Lovingly restoring the worst bike I've ever ridden.

Discussion in 'Some Assembly Required' started by Mullet5, Sep 7, 2010.

  1. Quickv4

    Quickv4 Pro Turd Polisher

    Joined:
    Jul 5, 2009
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    550
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    Dickinson, Nort' Dakohtah- Orig. from Wiscowsin
    BUMP???? :evil
  2. Mullet5

    Mullet5 Adventurer

    Joined:
    Jan 5, 2010
    Oddometer:
    92
    Location:
    Bay Area, California
    I am trying to get back to the Minsk!! I spent several weeks pouring time and money into my old 4Runner, then drove it to Montana and did a bunch of really excellent off roading in the snow, and then... It broke down. 8pm new years eve, 5 below zero, middle of nowhere, no cell reception. Weee!

    So I'll be dealing with that for a bit, but I am itching to get back to, uh... whatever the hell it is that I am doing with that thing.
  3. garrett the nerd

    garrett the nerd Sprocket Protector

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    Apr 27, 2010
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    871
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    Kalamazoo, Mi
    Couldnt have been TOO bad. You're still alive to face the terrible trio. :rofl
  4. RomaDakota

    RomaDakota Illuminatus!

    Joined:
    May 15, 2006
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    Goldilocks Zone
    Motivation ;-)
    [​IMG]
    Also, Matti at http://www.minskparts.com/ can help. I have ordered several times from him and delivery to US was no problem.
  5. Mullet5

    Mullet5 Adventurer

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    Jan 5, 2010
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    Bay Area, California

    1. That picture is the coolest thing I have ever seen! where did you find that? Awesome.

    2. Do you have a Minsk in the US, or did you order parts for another bike from him? I saw something with a backwards "N" in your signature, but I don't know what it is...

    Thank you, kind sir. I think that picture shall be my new desktop.
  6. RomaDakota

    RomaDakota Illuminatus!

    Joined:
    May 15, 2006
    Oddometer:
    1,542
    Location:
    Goldilocks Zone
    1 Flesh & Relics
    2 I have a Russian IZh, a 2-stroke similar to the Minsk.
    [​IMG]
  7. markjenn

    markjenn Long timer

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    Nov 9, 2003
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    Swellvue, WA
    Interesting site.

    Love your russian scoot.

    - Mark
  8. Mullet5

    Mullet5 Adventurer

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    Jan 5, 2010
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    Bay Area, California
    That is too cool, love it. You should ride it out here to California :evil
  9. Mullet5

    Mullet5 Adventurer

    Joined:
    Jan 5, 2010
    Oddometer:
    92
    Location:
    Bay Area, California
    Did a little bit of cleaning up in the garage today, hopefully later this week I can start cutting/smashing/ruining the head tube. I am really motivated to work on the Minsk for some reason. I just spent 20 minutes looking at Google image search results for "Minsk motorcycle".

    A few days ago someone asked me if I was going to have heat issues because I painted the engine... Hadn't thought of that. Input?
  10. Treadless

    Treadless seeking adventure

    Joined:
    May 8, 2005
    Oddometer:
    5,405
    Location:
    Santa Barbara Ca
    Did whoever mention what kind of heat issues? Engine seizing? Paint peeling? An engineer could come up with a multitude of issues that could occur. The worst that might happen is the paint might peel and you'll be looking at soda blasting the thing again. :hide

    As for the bearing cups, I call them cups because in most cases the races are pressed into the cups except in less expensive entry level stuff which likely the case with yours. Find some of the whatever the epoxy was that was mentioned earlier that I can't recall at the moment and install the bearing with that stuff. Carefully clean the cup and the area of the frame to bare metal, apply a semi liberal amount (enough to fill any voids between the cup and the frame) of the epoxy to both the frame and the cup. Push the cup into the head tube and wipe up most of the excess and create a fillet both in and outside of the head tube. Install the fork stem (bare, no fork legs) including the bearings and very lightly snug it in place, this should locate and align the cup. Maybe test fit first just to make sure. You should be good to go at this point.
    Since the bearing "race" is a cup and the cup is outside of the head tube of the frame most of the "load" will be carried by what is left of the end of the head tube and the cup contact point and not the epoxy. If in ten or fifteen years the repair need to be redone it is likely that other things will also need attention by then also.

    There are many ways to deal with the problem at hand and best fix for you is one that you can afford and easily complete yourself. Oh yea, and enjoy doing.


    :lurk
  11. Kevan Garrett

    Kevan Garrett Been here awhile

    Joined:
    Apr 7, 2009
    Oddometer:
    371
    Location:
    Benicia, CA
    Hey Mullet.

    Loving this thread, love the build, will glad sit around with you and hand you tools as needed, and help with the beer drinking. I am there for you.

    Keep the faith and keep up the great report.

    Kevan

    (subscribed!)
  12. Mullet5

    Mullet5 Adventurer

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    Jan 5, 2010
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    Bay Area, California
    Love that! I'll be thinking about that line every time I do something really half-assed.
  13. mark883

    mark883 and the mysterians

    Joined:
    Feb 16, 2007
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    1,612
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    Buckeyeland
    Be aware that the Wall Street Journal recently published an article about Minsks and Vietnam.

    Wall Street

    Rich bankers will soon be driving up the prices of these.
    Sell out, and you'll be rich!

    What's hilarious is that in the print version they mislabeled a pic of a Dnepr as a Minsk.
  14. WB-PDX

    WB-PDX Long timer

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    Where young people go to retire
    You have an interesting definition of recently: "SEPTEMBER 4, 2009"
  15. audigirl

    audigirl Adventurer w/Camera

    Joined:
    Jan 18, 2010
    Oddometer:
    5
    Location:
    Bay Area, California
    Yes, please get back to building the bikes! I have been spending the last few nights watching videos from the trip and I can't wait to hear the bikes run again.

    __________________

    '81 Suzuki GS 450 E
    '77 Kawasaki KE 100
    Minsk 125
  16. Mullet5

    Mullet5 Adventurer

    Joined:
    Jan 5, 2010
    Oddometer:
    92
    Location:
    Bay Area, California
    I am just going to write this post as if it hasn't been almost two months since my last update. Here it goes...

    After many "you can DO IT" conversations from friends, relatives, and people on the forums, I became convinced that I could fix the head tube of the Minsk myself. The plan was to cut off the metal strap that had been welded around the front of the head tube, clean everything up, then try to pound it back into shape with a mallet, then weld a new strap back on. Then I would be able to fill the imperfections with JB Weld or something similar. Surely, this would work.

    Beginning to cut the strap off
    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/bEYDlh0GwHqHpjPQexJr1Q?feat=embedwebsite"><img src="https://lh3.googleusercontent.com/_QMRLyAEclGA/TTRs6LAmpVI/AAAAAAAAIl4/t4eonwfzVfY/s800/2011-01-15%2012.32.20.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/4lpFK34WbcxTSkNkZCDcEg?feat=embedwebsite"><img src="https://lh4.googleusercontent.com/_QMRLyAEclGA/TTRtB-24d_I/AAAAAAAAIl8/kEEbqbUg8EI/s800/2011-01-15%2012.33.47.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    Strap removed!
    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/KoKmLrcLJvMG1AT9nl-fvQ?feat=embedwebsite"><img src="https://lh3.googleusercontent.com/_QMRLyAEclGA/TTRtLnG0luI/AAAAAAAAImA/XTM4jszZL88/s800/2011-01-15%2012.36.44.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/2o7bss2SM5uQ1_yG6bAcvQ?feat=embedwebsite"><img src="https://lh6.googleusercontent.com/_QMRLyAEclGA/TTRtrvXrJAI/AAAAAAAAImU/paeHrcaAgM8/s800/2011-01-15%2012.37.53.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    This is where it all went down the drain... When I cleaned it all up, I could see that it was much worse than I realized. Several major cracks, and worse, a huge ledge that had been sort of forged into the inside of the neck by the O.D. of the race.

    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/kqAUfTD2AlhROrDbWyHNFg?feat=embedwebsite"><img src="https://lh6.googleusercontent.com/_QMRLyAEclGA/TTRtUDql_cI/AAAAAAAAImE/DOFaFVsp3do/s800/2011-01-15%2012.59.47.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    <table style="width:auto;"><tr><td><a href="https://picasaweb.google.com/lh/photo/5uKOc3SjsFrdRdzSJSbeAQ?feat=embedwebsite"><img src="https://lh5.googleusercontent.com/_QMRLyAEclGA/TTRtbHpooYI/AAAAAAAAImI/ms8ggIO4fls/s800/2011-01-15%2012.59.22.jpg" height="600" width="800" /></a></td></tr><tr><td style="font-family:arial,sans-serif; font-size:11px; text-align:right">From <a href="https://picasaweb.google.com/GraysonWolf1/MinskBuild?feat=embedwebsite">Minsk build</a></td></tr></table>

    I tried to tap on it with a hammer a bit, but I could tell that the cracks were only going to get worse, and I was not going to be able to undo that ledge. So the frame is back over at Motolab with Derek, and he is going to... Do something. I'll keep you all updated, and annoy Derek by following him around with a camera and asking stupid questions.
  17. dilandau

    dilandau Been here awhile

    Joined:
    Aug 29, 2009
    Oddometer:
    828
    Location:
    oakland, ca
    well, at least now you know what that metal strap was doing on there!
  18. Hughlysses

    Hughlysses Long timer

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    Jun 2, 2004
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    Summerville, SC
    Glad to see you back at it. Looks like previous work has been done on that Minsk following the "get a bigger hammer" philosophy.

    The next stage should be very interesting- don't give up!
  19. fishkens

    fishkens Long timer

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    Nov 14, 2009
    Oddometer:
    5,223
    Location:
    Seattle, WA
    I just don't get why you call this the "worst bike I've ever ridden".

    Other than a minor nick or two it appears to be tip-top. :lol3

    Glad to see that you're back at it.
  20. istandalone

    istandalone Adventurer

    Joined:
    Jul 2, 2010
    Oddometer:
    40
    Nothing a little money and time won't fix!!