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Thread: project 225 6 speed

  1. #1
    Senior Member vanillagorilla1's Avatar
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    project 225 6 speed

    So it begins. I have been doing lots of reading and decided that this would be quite a fun project and will give a little more versatility to my ride. I am going to start with a tw200 motor and a ttr225 motor. Once I have both engines torn down on the bench I will mix and match as needed to make everything work. While rebuilding I will also do all the little things to make it like new such as replace worn bearings, honed cylinder, new piston, ect. I might even get fancy and paint it, but we will see on that. The 200 motor showed today so I tore it down to see what it looked like. Hopefully the 225 motor will be here next week and it will be torn down then. I wanted an early ttr motor to get the wide rande 6 speed and a non lined cylinder so its easy to bore and play with. The left over 200 and 225 parts are all up for grabs for cheap as somebody may need some small stuff. I will try to keep the lists on this page somewhat up to date.

    Parts needed
    -tw200 stator cover and stator
    -ttr head pipe maybe
    -toying with the idea of a different carb.


    parts not needed
    -200cc crank


    A few things still in the grey area
    -Anybody have dimensions for the spacer needed on the final drive shaft? If not I'm sure I can figure it out.



    I took a few shots while I was working this evening so here goes.

    Tw225 project by dolphaxel, on Flickr

    Tw225 project by dolphaxel, on Flickr
    thank you UPS for bashing the hell outta the box and busting off a cooling fin

    Tw225 project by dolphaxel, on Flickr
    Last edited by vanillagorilla1; 05-03-2015 at 10:08 PM.
    harvey likes this.
    93 tw. running like clockwork
    225 6 speed complete!
    82 honda gl500 silver wing. sold to a new home 11-24-17
    03 ducati monster 800sie. full rebuild and a danger to the public Hidden Content for sale

  2. #2
    Senior Member vanillagorilla1's Avatar
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    starting to get more of the story

    Tw225 project by dolphaxel, on Flickr
    and a little more

    Tw225 project by dolphaxel, on Flickr

    Tw225 project by dolphaxel, on Flickr
    someone most have stood on the shifter to make this happen

    Tw225 project by dolphaxel, on Flickr
    93 tw. running like clockwork
    225 6 speed complete!
    82 honda gl500 silver wing. sold to a new home 11-24-17
    03 ducati monster 800sie. full rebuild and a danger to the public Hidden Content for sale

  3. #3
    Senior Member vanillagorilla1's Avatar
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    and of course a stipped out bolt

    Tw225 project by dolphaxel, on Flickr
    what the hell is that!!!

    Tw225 project by dolphaxel, on Flickr
    YUCK!

    Tw225 project by dolphaxel, on Flickr

    Tw225 project by dolphaxel, on Flickr
    And here is what Im looking for. The final drive. This will get modified and reused.

    Tw225 project by dolphaxel, on Flickr
    93 tw. running like clockwork
    225 6 speed complete!
    82 honda gl500 silver wing. sold to a new home 11-24-17
    03 ducati monster 800sie. full rebuild and a danger to the public Hidden Content for sale

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  5. #4
    Senior Member TW-Brian's Avatar
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    Woohoo Vanilla!

    Sounds like you have done your research and have a good grasp of what is involved with this project. Joeband and I have also collected all the necessary parts for our builds and now I just need to free up some time and space to get ours done.

    Vagabond and Ronnydog have both been riding their conversions for a number of years and are great resources for any advice that you may need. I sent you a PM with my contact info if there is anything that I can do to help you.

    Looking forward to your build and keep the pictures coming!

    Brian

  6. #5
    Super Moderator littletommy's Avatar
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    Looking good so far Vanilla. This would be a fun Washington winter project. Sabasian (macbig2k1) could answer all your questions I'm sure. I'd be pissed about the cooling fins being broke in handling.
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  7. #6
    Senior Member Mr.Paynter's Avatar
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    Very cool, keen to see how it unfolds.
    Finally picked up a Tdub...

  8. #7
    Senior Member macbig2k1's Avatar
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    Quote Originally Posted by vanillagorilla1 View Post
    -Anybody have dimensions for the spacer needed on the final drive shaft? If not I'm sure I can figure it out.
    You don't have to make a spacer, to use the 6 speed gearing.
    You can modify the TW drive shaft to put the 6 gears of the TTR225 on the TW shaft.

    Quote Originally Posted by vanillagorilla1 View Post
    -Anybody have any experience with the wiseco YFM225 high comp piston? I have read that it will give a ttr motor a 10.5:1 compression ratio.
    Small mistake, it's 10.25:1.
    I always use the Wiseco piston on my engines.
    For a bigger bore I use Woessner and the "real big bore" a Yamaha piston.
    You'll find some more details here:
    https://tw200forum.com/forum/performa...up-250-cc.html

  9. #8
    Senior Member vanillagorilla1's Avatar
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    still working on collecting parts. Does anyone know if the ttr header is any larger or improve flow? or is it just stainless? Also thinking of the TM33-418 carb. Looks to be a fairly direct fit other than messing with the cables. Well Ill keep at it and keep typing. I'm still contemplating weather to go 10:25 high comp with 70ish mm bore or to send in the cylinder to lasleeve and go 74mm. Im not sure going all the way to 250 cost wise is all that effective. I would think the carb is gonna make a larger difference and I think the re-sleeve was several hundred bucks or close.
    93 tw. running like clockwork
    225 6 speed complete!
    82 honda gl500 silver wing. sold to a new home 11-24-17
    03 ducati monster 800sie. full rebuild and a danger to the public Hidden Content for sale

  10. #9
    Senior Member macbig2k1's Avatar
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    Info about the TTR header pipe.
    Please take a look on this link:
    https://tw200forum.com/forum/performa...tml#post148905
    -->> It's just a stainless steel version of the TW header pipe.

    I can't give you any info about the Mikuni TM34-418, I don't know this carb. Not available in Germany.
    But I have the measurements of the Mikuni TM34-2.

    I know, that the VM28-418 will fit without any problems (except a new throttle cable and control).
    33 mm - diameter cylinder side
    44 mm - diameter air box side
    82 mm - length

    The TM34-2 does have nearly the same length and hight as the VM28-418.
    40 mm - diameter cylinder side
    -->> is no problem, if you use the TTR225 intake rubber (2LN-13586-01-00)
    58 mm - diameter air box side
    -->> this will be a problem.
    The carb is too long to make an adapter from 58 mm to 45 mm (diameter of the air box rubber), because this carb does have nearly the same length like the original carb.
    So, if you want to use the TM34-2 you have to use an universal K&N air filter (please, do not use any cheap shitty scooter stuff, it's too low priced to be quality).


    It's never cost effective to make projects like this.
    The only question is: How much money do you want to spend into your engine?
    This is the only limitation.
    It's a hobby and you always have to spend money into it. just the budget is the limiting factor.

    I've payed some years ago over 750 EUR (~1000 USD) for my Akrapovic full exhaust system.
    Does it make sense to pay 500 bucks per hp?
    NO!!!!!!!!
    I am happy with it?
    Oh yes, I am!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    I have to push the brake before you ask.
    The Akrapovic exhausts for the TW are not available anymore since round about 4 years.
    GTG likes this.

  11. #10
    Senior Member vanillagorilla1's Avatar
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    Quote Originally Posted by macbig2k1 View Post
    Info about the TTR header pipe.
    Please take a look on this link:
    https://tw200forum.com/forum/performa...tml#post148905
    -->> It's just a stainless steel version o...........
    thanks for all that info. I think I meant the tm28. Still gathering onfo of corse, but for the time being im gonna strip this 225 and see what I got. From there I plan to start with the cases and build upward. Should be fun!
    93 tw. running like clockwork
    225 6 speed complete!
    82 honda gl500 silver wing. sold to a new home 11-24-17
    03 ducati monster 800sie. full rebuild and a danger to the public Hidden Content for sale

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