Suzuki TC90, the coolest $30 I've spent in awhile.

Discussion in '2 smokers' started by Bandit240, Nov 4, 2009.

  1. Bandit240

    Bandit240 Been here awhile

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    Yea, im trying to avoid having to bore it out. The guy says the piston and cylinder are good on the other bike, and if so i may use them with new rings. My cylinder has some scoring on the bottom bit under the ports. Im not going to port it or mess with any of that stuff, just going to get it going again.

    Im going to use it around town and on the farm, no major or hard use.
    #21
  2. Tasy's BIGJIM

    Tasy's BIGJIM CornerGrinner

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    [FONT='Verdana','sans-serif']Yeah that's the way Mate. These lil Wounders will run and run and run and run. BUT if it sucks air on Induction Your Motor will run like crap. More than that it will trick you! Listen Mate just a Thought thatÂ’s possibly Piston Slap (the skirt slaps the bore) those marks under the port? Just check the little end bearing (in Piston) and the Big End (on Crank). All you have to do is see if the Piston Rocks sideways and also any movement up and down? Jam the Fly Wheel to check the latter. Are those Marks Blue in the Bore? If so, again poor Induction, or Bad Pipe (you have to clean them you know)? Or no oil, or Flogged-I've seen these Pull Fire Wood so I doubt it? I love this good on-yu. You will have fun. I wish I lived nearby. I'd love to Ride one again. Yeah 30 odd years and 40kilos on... :rofl [/FONT][FONT='Verdana','sans-serif']<?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" /><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype>[/FONT][FONT='Verdana','sans-serif']Jim. [/FONT]<o:p></o:p>
    #22
  3. markjenn

    markjenn Long timer

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    What's that chocolate mocha in the cases? If that's emulsified water and oil, you really REALLY need to tear down the bottom end and at least get it cleaned up. There is really no need to be scared of splitting the cases.

    - Mark
    #23
  4. Bandit240

    Bandit240 Been here awhile

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    Sep 14, 2009
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    Charleston SC USA
    I got the other one today. What a mess it is. The electrical system is screwed and the engine is stuck. Doesn't matter anyway, im stripping it for parts. Opened that little cover for the carb and there was a carb in there, so im a happy person.

    [​IMG]
    [​IMG]
    #24
  5. pack

    pack Banned

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    "honey, where did the rug in the living room go?"
    #25
  6. Bandit240

    Bandit240 Been here awhile

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    Ok, ive been thinking of something. I now have another whole frame, so why not play with it. Maybe fit a 5hp Briggs engine in it? Get the kind that has a normal carb and not the in tank one. Use the bikes fuel tank to feed it. Have a go-cart type clutch on it so it would just be twist and go. My sisters kids want something other than the chinese 4-wheelers to ride, so im thinking that may be a cool ride for them.
    #26
  7. Tasy's BIGJIM

    Tasy's BIGJIM CornerGrinner

    Joined:
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    You will be spending a fair bit of time on that nice carpet making lots of Grease Marks...Lols! :D I got an old RD 250 going for a Young Buck lived across the road he was about 13yo at the time. He is now a Dad Married a lovely wife and one of my Best Friends... about 30 years latter! Oh and has Rode Bikes all his life. About to buy a Rocket Classic3 Triumph for him and his Misses. Oh sorry I've been away. I've gotten wrapped up in SKYPE with the Girlfriend! She looks a lot sweeter than you!:rofl Cheers Bandit. Jim.
    #27
  8. Bandit240

    Bandit240 Been here awhile

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    No more working in the living room. Ive got a large shop anyway, only reason it was inside was so i could watch a movie while doing a little chrome polishing. Wife was off that weekend.

    Its back up on the table and ive starting on cleaning up the parts. Going to take the 2 cylinders and pistons down to the local machine shop that i know the owner and see what he says can be done for them. He should be able to find me a piston and rings if needed.
    #28
  9. Tasy's BIGJIM

    Tasy's BIGJIM CornerGrinner

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    Good Luck with it... Jim.:D .
    #29
  10. lake_harley

    lake_harley Been here awhile

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    What I'd like to know is what was my cat "Moose" doing over at your house sitting on your motorcycle? Usually he's on my BMW

    Lynn
    #30
  11. Bandit240

    Bandit240 Been here awhile

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    Ive got it all pulled down to the bare frame. The frame paint is nice except for a few small spots. I don't really want to paint the whole frame, but i think im going to have to in order to make it look right if i want to paint those spots. The swingarm and triple tree are going to need painting, so i might as well do it all. Haven't done alot with the engine yet. Need to order rings for it, ive got a good cylinder and piston from the parts bike. Also going to need tires. Im thinking trials type tires for now. (Plus ive already got one decent looking trials tire from the parts bike). I will need DOT rated tires at some point for it.

    Ill get pictures tomorrow, cold in the shop right now.
    #31
  12. jwalters

    jwalters Farkle Proliferator

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    I see this is an old thread but I just picked up the same bike. What a cool little machine!

    Pics here.
    #32
  13. Gham

    Gham Long timer

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    Are you that big jwalters or are those bikes that much smaller than I remember:lol3

    I had a 71 as my first bike,my best friend had the same green(and slower) 72 model.
    #33
  14. jwalters

    jwalters Farkle Proliferator

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    Former football player. 6'8" 300lbs. :-)

    Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
    #34
  15. Shocktower

    Shocktower Long timer

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    That was my first bike, my brother still has it I may pick it up next year and restore it :norton
    #35
  16. deaninkl

    deaninkl Been here awhile

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    Bandit240, I satrted my biking life in 1976 on a Suzuki TS90, very similar to your TC, fun bike and the start of 36 years of fun so far.
    #36
  17. jwalters

    jwalters Farkle Proliferator

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    It's interesting. My TC90 has a TC100 engine in the frame. Apparently, the engines were a pretty simple swap. I didn't notice it till the PO showed me the engine number and the frame numbers.
    #37
  18. mach1charlie

    mach1charlie To old to fall off

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    Was my first bike, If youtook off the carb cover on engine and put on the choke it picked up 5 HP, felt like it in the driveway.
    #38
  19. jwalters

    jwalters Farkle Proliferator

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    Hi Guys, I hope you don't mind me hijacking/reviving an old thread.

    Quick question for you TC90/TC100 owners. On the carb, there is a fuel line and another (what appears to be) vacuum line on the side of the carb that goes into the crank somewhere. The PO of my bike has long since removed the oil res and oil injectors, so it's premix only now. I have a feeling that mysterious vacuum line was for the oil injection system, but I'm not sure. Can someone confirm this? Instead of capping it at the carb, the PO left the hose on the bike and capped it near where the old oil tank sat. Of course, the hose has dry rotted now, and I think I'm getting an air leak through this hose. Unfortunately, I'm not home to confirm my theory just yet, so I thought I'd see what the internet has to say about it first! Thanks!
    #39
  20. kwight

    kwight Adventurer

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    I took a look at mine tonight and you are right, one is the gas, the other is the oil injection.

    I paid twice what you did for mine but it is much more complete and was a barn find of 20 years.

    Good luck with yours and look forward to seeing more.

    Kevin
    #40