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Thread: TW200 engine swap

  1. #1
    Senior Member Darth's Avatar
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    TW200 engine swap

    Has anyone installed a TTR225 or 230 engine in a TeeDub?
    Is it a bolt-in swap, or require significant mods?

    It seems to be the perfect motor for the modified 2014 TW200 I'm building...70% smooth & paved roads, 30% everything else.

    Waddaya think?
    "Faster, faster, faster, until the thrill of speed overcomes the fear of death."
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    “It’s more fun to ride a slow bike fast, than a fast bike slow”.

    "The less horsepower a motorcycle has, the more it can teach you.” - Ben Bostrom

    And though a mountain may rise up and smack the livin' shit outta me,
    and wad up my bike somethin' awful...
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  2. #2
    Junior Member Aggie97's Avatar
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    Intrigued...
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  3. #3
    Super Moderator Purple's Avatar
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    Direct swap – it’s called a TW225

    But …… you’ll need to sort out the output shaft offset – simple enough if you know the right people
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  5. #4
    Senior Member TW-Brian's Avatar
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    Been there, done that (a couple of times ).

    It is a piece of cake with PlacerLode's output shaft extension .

    Read all about it. . . . . .

    https://www.tw200forum.com/forum/per...25-ttr230.html

    https://www.tw200forum.com/forum/tw2...nversions.html

  6. #5
    Senior Member Darth's Avatar
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    Thanks guys...really appreciate your input!

    I read both the threads completely and my mind is blown!
    I could easily handle a straight plug & play engine swap, but not much beyond that.

    Previous engine upgrades on 850, 900, 2 X 1000 & 1150 hot-street engines were done by a buddy race bike engine builder, with me doing as much of the "easy stuff" as I could (not much!)
    He is now in a different business and doesn't do motorcycle work.
    Thus my hope that I could do an easy engine swap myself with a larger TW variant, even a 5-speed if necessary.

    Maybe I'll just go with a turbo setup, yeah...that's it!
    Ken likes this.
    "Faster, faster, faster, until the thrill of speed overcomes the fear of death."
    - Hunter S. Thompson

    “It’s more fun to ride a slow bike fast, than a fast bike slow”.

    "The less horsepower a motorcycle has, the more it can teach you.” - Ben Bostrom

    And though a mountain may rise up and smack the livin' shit outta me,
    and wad up my bike somethin' awful...
    Still, I rise!
    (With apologies to Maya Angelou)


    "Give a Damn"
    - C. M. Howe, Jr.

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  7. #6
    Senior Member Fred's Avatar
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    I am very pleased with ease of installation, as well as performance, of my TTR225 6-speed engine in my Betty Boop TW.
    I used PlacerLode's output shaft extension rather than split the cases and modify the TW's output shaft.
    I would recommend searching for an XT225 motor since they are all kick start compatible while not all the TTR's have the required machining on the right side engine case.
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  8. #7
    Super Moderator Purple's Avatar
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    Bonus ball (as I understand it) is that you can use the same carb (28mm), albeit with a larger main jet. The bigger engine provides for a wider torque range, and with six gears to choose from, your left foot will be a bit more busy

    The air filters are the same for both engines, and only the exhaust valve clearance is different (larger), the inlet remains the same (curiously enough)

    I did a comparison test between the TW200 and the TW225 (same engine and frame) which should answer a few questions - https://www.tw200forum.com/forum/tra...ngs-count.html

    Although Yamaha produced the TW225 for the domestic market only, and with the five speed box, it was essentially an XT225 motor implanted in exactly the same frame

    As said earlier, the engine is a direct swap – no muss – no fuss

    Try it – you won’t be disappointed ……
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    TW200 - 1998 - Japanese import - 7000 miles on the clock - TW225 Special Edition 2007
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  9. #8
    Member 300stw's Avatar
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    how about wiring the xt motor to the tw harness and have everything work

  10. #9
    Senior Member jtomelliott49's Avatar
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    We think you can do this. Especially with the shaft extension which eliminates the machine work, as I understand it.
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    Tom in Wichita

    78 Moto Guzzi SP1000
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    99 Yamaha TW200
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    74 Moto Guzzi Eldorado Police model (in many pieces)

  11. #10
    Senior Member TW-Brian's Avatar
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    Quote Originally Posted by 300stw View Post
    how about wiring the xt motor to the tw harness and have everything work
    The easiest way to have a TTR/XT225 engine plug and play is to use the TW200 left side cover/stator/flywheel and CDI.

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