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Thread: ? about compression on tri moto 175

  1. #1
    3leggeddog's Avatar
    3leggeddog is offline The sun shines on a dogs ass every now and then Got the holeshot
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    ? about compression on tri moto 175

    how much compression do those have,i can roll mine right over with out a pull starter,bare handed.has a little resistence but not much.
    Full Walsh CRF 450 hybrid 250r

  2. #2
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    mines got a Ton, and it eats pull ropes because of it! I go through a pull rope every couple months, and I dont ride it much, if ever.
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  3. #3
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    Quote Originally Posted by Trikeaholic
    mines got a Ton, and it eats pull ropes because of it! I go through a pull rope every couple months, and I dont ride it much, if ever.
    something is cutting into it or rubbing hard.

    open it up get the sand paper or dremmel and smooth all the cable passways etc.. smooth out any sharp pieces.

    Pulling hard on a rope should not be a problem.. friction however !!!!


    ..

    How much PSI you got now ? i know a 200 honda 4 stroke has aprox 140 - 160 when fresh.
    Currently :

    82 ATC - 200, plain jane, almost mint. ( Sold, 03-17-2005)
    84 ATC - 200 ES, Jimmy-Rigged, don't ask.( Sold, 03-17-2005)
    85 ATC - 250 SX, Pride and Joy, Bottom-Less Money Pit.
    84 125 M - The Mini-SX not running yet. but won't be long.
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  4. #4
    Join Date
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    check the homepage under " Specifications " .. might be listed.
    Currently :

    82 ATC - 200, plain jane, almost mint. ( Sold, 03-17-2005)
    84 ATC - 200 ES, Jimmy-Rigged, don't ask.( Sold, 03-17-2005)
    85 ATC - 250 SX, Pride and Joy, Bottom-Less Money Pit.
    84 125 M - The Mini-SX not running yet. but won't be long.
    --

    The more people i meet.. the more i like my DOG !

  5. #5
    3leggeddog's Avatar
    3leggeddog is offline The sun shines on a dogs ass every now and then Got the holeshot
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    could the lack of compression be due to the fact the carb slide is missing?thanks
    Full Walsh CRF 450 hybrid 250r

  6. #6
    Join Date
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    no.

    the slide ( or carb for that matter ) has nothing to do with compression.
    Currently :

    82 ATC - 200, plain jane, almost mint. ( Sold, 03-17-2005)
    84 ATC - 200 ES, Jimmy-Rigged, don't ask.( Sold, 03-17-2005)
    85 ATC - 250 SX, Pride and Joy, Bottom-Less Money Pit.
    84 125 M - The Mini-SX not running yet. but won't be long.
    --

    The more people i meet.. the more i like my DOG !

  7. #7
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    Kirkville, NY
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    The book says 128psi for the YT175. If you can spin it over that easy then something is wrong. Missing the carb. slide should affect the compression but in a good way. For a compression test you are supposed to hold the throttle open so it can get as much air as possible, without the slide the throttle is already open.
    1984 Yamaha YT 60 Tri Zinger(current project)
    1983 Yamaha YTM 200 (rear suspension kit)..... long term project
    2004 BMW R1150R
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  8. #8
    3leggeddog's Avatar
    3leggeddog is offline The sun shines on a dogs ass every now and then Got the holeshot
    Join Date
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    Location
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    thanks guys,i need to tear into it,do a compreesion test and get this thing runnin.
    Full Walsh CRF 450 hybrid 250r

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