TW 225????
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Thread: TW 225????

  1. #1
    Member Dako124's Avatar
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    I keep seeing TW225's online. Is it a different bike or is it the same!? They all come up with a picture of a TW200.

    i Dont get it.....

  2. #2
    Senior Member old white truck's Avatar
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    It was only made for a few years and it was not available in the US. I think the last year of production was 2007.



    ...but I could be wrong.

  3. #3
    Member Dako124's Avatar
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    thats odd, do you know if the 225 motor fits in the 200 frame?

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  5. #4
    Senior Member rm_hm's Avatar
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    It should but not many were made, they both have the extended jackshaft.



    Ebay USA only has ONE complete TW200 motor for sale. So finding a 225 engine somewhere in Asia would be quite a task indeed.



    A long time ago I put a 110 motor in a trail 90 & rejetted. After all my hard work I barely noticed an improvement.


  6. #5
    Senior Member macbig2k1's Avatar
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    The TW200 and TW225 does have the same engine.



    The TW225 engine is the combination of:

    - a TW200 crank case and gearing

    plus

    - XT/TT 225/230 top end (crank shaft, cylinder, piston)



    If you want to convert your TW200 to a TW225, you will need these parts:

    - sleeve/liner for a Yamaha 225/230 engine (for 70mm pistons)

    -> or a XT/TT/TTR 225/230 cylinder

    - crankshaft from a XT/TT/TTR 225/230 engine

    - piston from:

    -> Wiseco 4312M (10.25:1 Comp.; 70.00, 70.50 or 71.00 mm) or

    -> Wiseco 4675M (8.7:1 Comp.; 71.00, 71.50 or 72.00 mm) or

    -> Woessner piston 8659D (8.7:1 Comp.; 71.00, 71.50, 72.00, 72.50 or 73.00 mm)

  7. #6
    Senior Member old mad max's Avatar
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    Quote Originally Posted by macbig2k1 View Post
    The TW200 and TW225 does have the same engine.



    The TW225 engine is the combination of:

    - a TW200 crank case and gearing

    plus

    - XT/TT 225/230 top end (crank shaft, cylinder, piston)



    If you want to convert your TW200 to a TW225, you will need these parts:

    - sleeve/liner for a Yamaha 225/230 engine (for 70mm pistons)

    -> or a XT/TT/TTR 225/230 cylinder

    - crankshaft from a XT/TT/TTR 225/230 engine

    - piston from:

    -> Wiseco 4312M (10.25:1 Comp.; 70.00, 70.50 or 71.00 mm) or

    -> Wiseco 4675M (8.7:1 Comp.; 71.00, 71.50 or 72.00 mm) or

    -> Woessner piston 8659D (8.7:1 Comp.; 71.00, 71.50, 72.00, 72.50 or 73.00 mm)
    Gosh darn you guys know your stuff......................... And a"BIG" thanks for sharing with us mere mortals. (o; OMM.

  8. #7
    Member Dako124's Avatar
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    Awesome thanks for replying guys! And thats cool, when mine needs a rebuild I'll have to convert it to a 225!!!

  9. #8
    Senior Member RisingSun's Avatar
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    The TW225 has been around since 2002 and been in production since even now in Japan. Stock not modified and Frankensteined together. You could get a 225 engine for about $312.50 without shipping from japan. You would have to get the electronics too. Sure it can fit no problem in a TW200 frame,but why bother? For the same price you could get a SR 500 engine. If you had the coin you could get a newer SR engine with fuel injection too. They all can be squeezed into the frame. I grew up in Japan. The whole reason behind the TW being below 250cc has to do with their taxes and complicated and bureaucratic crazy definitions of categories between licensing and JCI Japanese Car Inspections. Tricky way of saying another way to tax you. If a bike is below 250cc it does not require inspections in Japan and you pay less taxes. That is why TW's are sooo popular in japan. Also why they love to modify them. If your never gonna get inspected you can do what you want as long as its not too crazy. The police can't even give you a ticket for technical stuff cause you can argue that hey your a policeman not a mechanic or engineer so you don't have the credentials.

  10. #9
    Member Dako124's Avatar
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    wow thats awesome info! thanks for sharing!

  11. #10
    Member Dako124's Avatar
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    so I looked at the 500. It doesnt look like you can put it in the TW200 frame without cutting the frame...can you?

    and same with the 225?... are you able to fit a 225 in the 200's frame without major modifications?

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