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Squirrel Power: Saving a Suzuki FA50

  • Dave Zipf

,

We went to our closest small town hardware store and found some brass tubing that was the perfect ID for our pin.  We then cut a piece off to press into the seat (pro tip: keep the pin inside the tubing when you cut it.  Brass is soft and will deform really easily, crushing the cut end of the tube and making it impossible to push the pin through).  The tube was a tight fit into the seat and because of the overhangs for the seat itself, it was a bit of a debacle getting the tube in.  Pressing involved a hammer and a punch.

But once pressed in, the pivot works as it should.  Hopefully this will prevent further damage from occurring to the seat.  Best of all, the tube only cost a couple bucks and makes our original seat even better.

The license plate bracket was smashed flat against the bottom of the tail light.  With some Clarkson technology, we were able to make it functional again.

Now that our little Suzuki is running and reliable, we are very happy with it.  It’s still very slow though and there remains some work to do.  While there aren’t a ton of mods for this bike, there are a few things we can do to add some grunt to this little motor.  Some cheap mods include bumping up the compression ratio, adding a good air filter, and playing with the ignition timing.  A decent exhaust with expansion chamber will also add some ponies (some exhausts will actually double the FA50’s power).  A 12V electrical system would allow us to upgrade the entire ignition system and give us a hotter spark, as well as install brighter lights and a louder horn.  And if we get really ambitious we can turn to porting the head and installing a 60cc cylinder kit.  Plus, there are high performance (read: modern and not dry-rotted) tires, a fancy rear shock, higher performance brake shoes, and some clutch tuning we can add to the mix.

For such a forgotten bike, the possibilities are pretty wide.  How greedy will we get?  Depends on how many close encounters with traffic we meet.  For now, this bike is sitting in the garage as riding in in below 30 degree weather is pretty miserable.  As the weather warms up, we’ll play with it more and see if we can beat the neighborhood kids on their foot powered Razors.

 

As I write this, we are definitely not in moped weather anymore, though we are in perfect VehiCross weather!  Right now the FA50 is sitting in the back of the garage, waiting for a warm day to ride again.  While it sits, we'll buy a few simple speed parts and get it ready for the Spring.  Our FA50 has already proven to be a unique little bike and one we can't wait to put some miles on.  Who knows, maybe it will even turn this car guy into a bike guy.

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31 comments
  1. Mike Zander says:
    May 24, 2019 at 12:30 am

    Lol!! I bought one in ’98, still have it, and it still brings a smile to my face. I have upgraded since but it’s still fun to run around town.

    Reply
  2. Steve Petrie says:
    May 30, 2019 at 9:07 am

    I had one in high school back in 82-84. My dad got it for me when I asked for a car. It broke the ice quite well, but was not very useful for dates. Still had a lot of fun with it. Drove it to school my jr and sr year, as well as going to the hang out pizza place with friends. Lots of good memories. I actually got mine to hit 40mph a couple of times, but that was going down a pretty steep hill. Most of the time I topped out at around 30mph.

    Reply
  3. miller says:
    December 11, 2019 at 10:37 am

    I have a fz50 very similar. The headlight is close enough to a 6v led flash light head, one of the ones that use the big square 6v battery. While the light pattern isn’t ideal it’s still a load brighter than factory

    Reply
  4. Gary Krawchuk says:
    March 29, 2020 at 11:35 am

    I just bought an FA50 as a project. Thanks for the story and the insights. I am really looking forward to the rebuild and perhaps some customization of mine.

    Reply
    1. Alexander Moon says:
      January 25, 2022 at 11:14 am

      Did you ever end up fixing it up? I just found one and wanna do the same thing but I don’t really know where to start.

      Reply
      1. Laszlo Jakab says:
        April 16, 2024 at 9:31 am

        Hey Alex! You ever get started? I’m a newbie in the midst of restoring one too and would love to chat

        Reply
  5. Clark says:
    April 1, 2020 at 12:16 pm

    I’m in KY and looking for an FA50- still got this one or know of any others around? Had one in the 80s and looooved it!

    6063562289

    Reply
    1. Dave Zipf says:
      September 2, 2020 at 4:57 pm

      I actually bought a second last year with a dead engine. Been slowly rebuilding it (you’ll see more on that project at a later date).

      Reply
      1. Marion says:
        August 15, 2024 at 12:39 pm

        Hello,
        I have a 1988 FA50 Suzuki that I need a few parts for new or used.
        Oil pump cover, white plastic, if not white I will paint, Suzuki number 11411-02301 or 11411-02300.
        Steering stem cap, plastic/rubber, 51325-02200.
        2) mirrors, 56500-02301.
        Thank you, Marion. Bloomington, Indiana us6jxd@aol.com

        Reply
    2. Alan says:
      September 21, 2020 at 6:07 pm

      I have a 1980 runs perfect looks great needs headlight. $500.00

      Reply
      1. John Welsh says:
        November 1, 2020 at 8:00 am

        Is FA50 still for sale? Just saw your post

        Reply
    3. Terry Ford says:
      April 13, 2021 at 5:44 pm

      I have one i just got its all. Original it’s a 19 89 Suzuki fa50 MDZ start on first kick runs excellent very excellent shape I’ll decals paint chrome rims everything is original just like it came up for the showroom asking 600 for it

      Reply
      1. Brent Andre says:
        May 8, 2021 at 2:05 pm

        Do you still have this available?

        Reply
  6. Keith Rixhard says:
    June 16, 2020 at 7:48 am

    Aren’t the tires 12 inch not 14?
    I have an FZ 50 that needs ‘em!

    Reply
    1. John Faust says:
      June 17, 2023 at 2:43 am

      I have a 1983 Suzuki FA 50 I’m looking for some parts not sure if I can use a fly wheel off any 49 cc to a 50 cc flywheel ??

      Reply
  7. Keith Richard says:
    June 16, 2020 at 7:51 am

    I meant 13 inch wheels. I have the cast iron rims, without spokes.

    Reply
  8. Chad Craghead says:
    September 2, 2020 at 11:04 am

    I am looking for a carb for FA50. I can’t find a part number and the one I found on the internet is soldout.

    Do you have a part number for the replacement you used?

    ” The new carb is a Chinese knockoff and it shows: there is casting flash all over the body, which is clearly made of an inferior alloy, and the float inside is plastic. Installing the new carb means replacing the throttle and choke cable ends, which are both sized differently. Fortunately, the new carb includes both. “

    Reply
    1. Dave Zipf says:
      September 2, 2020 at 4:56 pm

      I bought my carb on eBay, but Treatland sells them now. Treatland also sells larger carbs and accompanying intakes if you’re looking for more power.

      Reply
  9. calvin says:
    March 5, 2021 at 12:18 am

    i noticed that you didnt have a muffler, i just bought an ’84 FA50 without a muffler and i dont know wether any muffler off ebay or amazon will work or if i even need one. could you help me out?

    Reply
    1. Dave Zipf says:
      March 5, 2021 at 7:59 am

      You can ride your FA50 with no exhaust, but it will make your ears ring after a few miles. I already tried making my own exhaust for this FA50 and it was a failure. You can find used exhausts on eBay for ~$60, but most of them are rusted to death and clogged with 2-stroke soot. I would recommend getting an MLM exhaust from Treatland. MLM has three different exhaust options for the FA50. They’re all brand new and bolt in. They have an OEM replacement exhaust as well as a couple of performance options. If you’re doing a straight restoration, the OEM exhaust is the cheapest. But if you want a little extra power, the side bleed exhaust works on just about an FA50 build. I have one for this FA50, but have not written up the installation or review yet. I tried it on the stock engine and it made a noticeable improvement in mid range torque. I am currently running it on a 60cc engine I just finished up late in the Fall and it is a necessity to make that engine sing.

      Reply
  10. Ron H. says:
    March 22, 2021 at 2:21 pm

    Great wrìte up! Thank you,

    Reply
  11. Robert Smith says:
    March 17, 2022 at 3:21 pm

    Does anyone have a diagram for the chaindrive. I opened up the case and the gears fell out.

    Reply
    1. Dave Zipf says:
      March 18, 2022 at 4:37 am

      You can find it in the factory service manual. Just search online and you’ll find a PDF scan of the entire Suzuki manual. It will also show you how the kick starter is laid out and it’s really important to assemble it correctly. If you don’t, the kick starter will shred itself.

      Reply
  12. Thomas says:
    December 18, 2022 at 10:09 am

    Can anyone send me a link to the exact mikuni replacement carburetor that comes withThe throttle and choke ends as well as the intake gasket.

    Please and thank you

    Reply
    1. Dave Zipf says:
      December 19, 2022 at 7:02 am

      https://www.treatland.tv/suzuki-FA50-stock-clone-carb-p/fa50-clone-carb.htm

      Reply
    2. Dave Zipf says:
      December 19, 2022 at 7:03 am

      Forgot the intake gasket:

      https://www.treatland.tv/PRO-SERIES-suzuki-FA50-intake-gasket-p/suzuki-fa50-intake-gasket-grey.htm

      Reply
  13. Jax Rhapsody says:
    March 16, 2023 at 2:01 pm

    Louisville, or Lex? I’m in Louisville. I rode all the way up to central Indiana to get a 80 Garelli SSXL, that been sitting in a warehouse for thirty years. I’m planning on an engine swap for that bad boy. I hope that fa50 done you well.

    Reply
    1. Dave Zipf says:
      March 29, 2023 at 5:37 pm

      Lexington when this was written, but I’ve moved back to the East Coast since then. It’s a great little bike except when I forget to air up the tires and cut an inner tube! Got more to come for this little guy too

      Reply
  14. Dirk says:
    April 28, 2023 at 1:02 am

    You can solder the float and keep your Mikuni carb over the cheap Chinese replacement

    Reply
    1. Dave Zipf says:
      April 28, 2023 at 3:51 pm

      The knockoff was a temporary fix:

      https://motoiq.com/squirrel-power-making-a-minibear-part-1/

      Reply
  15. Marion says:
    August 15, 2024 at 12:31 pm

    Hello,
    I have a 1988 FA50 Suzuki that I need a few parts for new or used.
    Oil pump cover, white plastic, if not white I will paint, Suzuki number 11411-02301 or 11411-02300.
    Steering stem cap, plastic/rubber, 51325-02200.
    2) mirrors, 56500-02301.
    Thank you, Marion. Bloomington, Indiana us6jxd@aol.com

    Reply

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