1971 Suzuki TS90
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1971 Suzuki TS90

This is a discussion on 1971 Suzuki TS90 within the General forums, part of the Caferacer.net Forums category; I picked up this little TS90 the other day for $300. It was an Offer up sale local to me. To be honest there was ...

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  1. #1
    Senior Member knappyfeet's Avatar
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    1971 Suzuki TS90

    I picked up this little TS90 the other day for $300. It was an Offer up sale local to me. To be honest there was more rust on it than the picture seem to indicate but after meeting the seller I thought I would just get it. He was a real nice guy who told me he would sell me his little TS50 when he was ready.

    Suprisingly this little bike starts and runs solid with no abnormal engine sounds....ie.... bearings, pins, etc. I used my remote testing/tuning gas tank and it ran nice. It was a little hard idling but the carb just needs a good cleaning. The forks are shot and the rear shocks are frozen in place. It will need things here and there but at this time that is all I'm going to do to it......get it running and reliable and functioning properly. I purchased it with a "bill of sale" only but that doesn't scare me any more. As long as the bike is out of the dmv system (which this one is) I have a guy who can get all the paperwork for it with no hassle.

    I bought this with the intention of taking this along with my Yamaha 90 on the RV so me and my wife can use them, etc. Based on some preliminary inspection and browsing ebay I'm assuming I will probably need another $500 to $700 additionally in parts and stuff to get it reliable. So after $1000 in total....plus I'm guessing $150 in dmv fees for a total of around $1200 I will have a reliable little bike that still looks like a rusty pile of crap. And if in the future I decide to do a "kinda" restoration...since there is so much chrome on this bike....it would probably be an additional $1200.....for a grand total of $2400. For now all of this is just math.

    The inside of the tank may require a lining but I'll know better after a good cleaning. On the plus side the tank kinda has that iron head "turtle tank" look to it.


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  2. #2
    Senior Member TrialsRider's Avatar
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    That Honcho was very lucky to find you.

    btw ... I have a shop manual for that bike if you need any info on it.
    Last edited by TrialsRider; 05-30-2018 at 06:38 AM.

  3. #3
    Senior Member BigAl8295's Avatar
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    Great buy!

    My son has a TS50 that he bought from Jack Cole. Absolutely loves it.

    - - - Updated - - -

    Great buy!

    My son has a TS50 that he bought from Jack Cole. Absolutely loves it.
    I like my shocks like I like my carryout. Cheap and Chinese.

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  5. #4
    Senior Member knappyfeet's Avatar
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    Quote Originally Posted by TrialsRider View Post
    I have a shop manual for that bike if you need any info on it.
    Thank you for that. Maybe you could give me some carb numbers like jet sizes, how many turns out, etc.


    Quote Originally Posted by BigAl8295 View Post
    My son has a TS50 that he bought from Jack Cole. Absolutely loves it.
    Good to hear that.

    The guy has a nice little 50 with appropriate aged patina on it. That little one would be perfect for my wife.

    So my next step is to clean out the carb and the entire fuel system...lines, petcock, tank, filter, etc. I can't get into the tank right away but it doesn't look like the nightmare tank off the FZR. Looks like a mixture of some varnish, sludge and rust.....hopefully more of everything else than rust. Even so a liner may be in its future.


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  6. #5
    Senior Member TrialsRider's Avatar
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    I think these are all the carburetor relevant pages:
    https://postimg.cc/image/wfaosc76r/

    https://postimg.cc/image/pou7iwrqr/
    https://postimg.cc/image/yjv1tfo8z/
    https://postimg.cc/image/lsgvmxtwj/
    https://postimg.cc/image/yjv1tfvyr/

    ... it might take a while but I'll find out how much it would cost to mail you the book, if it's not outrageous I'll get you to PM me your mailing address and send it to you.
    knappyfeet likes this.

  7. #6
    Senior Member knappyfeet's Avatar
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    Thank you!

    I'll pay for it and shipping.....just let me know. Paypal...money order...whatever you need. Thanks again and no hurry at all...take your time

  8. #7
    Senior Member 44dwarf's Avatar
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    My 2nd bike was a TS90 with factory 110 kit it used a half moon rotary valve and was a rocket but never could get it set up right it would eat pistons regularly 15-20 hour was all it was good for. KEEP IT STOCK. keep the oil pump and keep mixing some in the tank too.
    \"Smok\'in the competition NOT Tobacco\"
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  9. #8
    Senior Member knappyfeet's Avatar
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    Quote Originally Posted by 44dwarf View Post
    keep the oil pump and keep mixing some in the tank too.
    Sound advice...

    It will remain stock......with the exception of the cat rear tailight....like right out of a 70s J.C. Whitney catalog that my wife wanted. So far counting that and a clean set of shocks and forks I'm around $110 in parts.
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  10. #9
    Senior Member 44dwarf's Avatar
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    So many think toss the pump and just run premix....not on rotary valve motor designed to be oiled at the valve and a crank bearing.
    \"Smok\'in the competition NOT Tobacco\"
    \"Transplant organs, Don\'t bury them!\"

    USCRA #944
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  11. #10
    Senior Member knappyfeet's Avatar
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    Received the shocks from ebay. They were very clean. Installed they look out of place around all that rust.



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