THE BIGWHEEL THREAD!!! Yamaha BW350, BW200

Discussion in 'Thumpers' started by Mr. BigWheel, Feb 4, 2011.

  1. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
    Oddometer:
    7
    Location:
    Michigan
    New to the fourm. Heres a pic of my new toy. Missing the left side cover, anyone know where I can get one besides DC plastics?[​IMG]
  2. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
    Oddometer:
    7
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    Michigan
    Other side[​IMG]
  3. Shercoman

    Shercoman Been here awhile

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    Jul 5, 2008
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    457
    Location:
    Pine,Colorado
    Welcome to the forum!

    Wow!
    Nice find.
    If those tires are original,that doesn't have many miles on it.
  4. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
    Oddometer:
    7
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    Michigan
    I believe that the tires on the 350 are original. I couldn't pass it up.

    Here are some pics of the 86 Big Wheel 200 I sold.[​IMG]
  5. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
    Oddometer:
    7
    Location:
    Michigan
    Other Side[​IMG]
  6. Röhrich

    Röhrich big wheel freak

    Joined:
    Dec 28, 2012
    Oddometer:
    196
    Location:
    Germany\Netherlands
    hey Yesterdays,

    What kind of rear tire does that BW200 have?
    It looks realy nice.:eek1

    Regards,
  7. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
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    7
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    Michigan
    Rohrich

    The rear is a Kenda Bear Claw 22x12x9. Good tire for snow, mud, and sand. Not the best for handling, but not bad.
  8. Shercoman

    Shercoman Been here awhile

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    Yesterdays
    What is the front tire?
    Thanks!
  9. Yesterdays

    Yesterdays n00b

    Joined:
    May 3, 2013
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    Michigan
    Shercoman

    The front is a Kenda Pathfinder 25x8x12. That was a great all around tire.
  10. epix1718

    epix1718 Been here awhile

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    Sep 14, 2010
    Oddometer:
    734
    Location:
    Michigan/Indiana border
    Could someone post a close up picture of the clutch actuator assembly on the engine? Thanks!
  11. Röhrich

    Röhrich big wheel freak

    Joined:
    Dec 28, 2012
    Oddometer:
    196
    Location:
    Germany\Netherlands
    Hi,

    Here are some pictures of the BW200 with new lights and taillight.

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    Does someone have a picture for me of the batterycover of the BW200 electric? The cover where you can look on the battery.
    I don´t have this part, and want to make one myself.

    Regards,

    Röhrich
  12. MastuhWaffles

    MastuhWaffles Master of Waffles

    Joined:
    Apr 18, 2013
    Oddometer:
    13
    Location:
    Texas
    Does anyone know where I can pick up a chain guard?
  13. *g*

    *g* n00b

    Joined:
    Apr 12, 2008
    Oddometer:
    1
    Anyone had any experience with the Fantic Koala?

    [​IMG]

    50cc 2 stroke.

    Mine is missing a few bits; I'm tempted to see if I can fit a pit bike engine, cg125 engine or similar in, as it'll probably be easier than trying to find parts and workout what's going on with the Fantic engine!

    Would go for a ktm 125/200 enduro or similar, but I think that'd be pushing the chassis a little.
  14. kubiak

    kubiak Long timer

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    4,837
    Location:
    madera california
    thats super nice!
  15. epix1718

    epix1718 Been here awhile

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    Sep 14, 2010
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    734
    Location:
    Michigan/Indiana border
    Anyone had to take out the kickstart assembly and then put it back in? I *think* I installed the assembly right (using the factory diagram) and cocking the spring about 180* to get it onto the post.

    When I push down the kickstart lever there is all the resistance but it won't spring back forward... what could be causing this? I had the whole engine split to replace an axle and put everything back together... also how hard should it be to rotate the clutch by hand (have clutch cover off the bike), it's pretty tense but will rotate slowly.
  16. Röhrich

    Röhrich big wheel freak

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    Dec 28, 2012
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    196
    Location:
    Germany\Netherlands
    Hi epix,

    I restored my whole engine and took of course the kickstart out of the engine.
    I remember that it was very simple. You put it back in the hole of the kickstart, and look for the gears? that they fit together. There is also a round spring that you have to pul once or twice arround the kickstarter mechanism.
    And then the kickstarter should work
    Sorry for the bad English,

    Röhrich
  17. epix1718

    epix1718 Been here awhile

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    Sep 14, 2010
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    734
    Location:
    Michigan/Indiana border
    Rohrich, thanks much, got the kickstarter in and it's working now. I had the washer/circlip in the wrong order.


    Now the new issue is I have the engine all back together and cases installed, motor is in the frame but when I shift there is no neutral!!! I can hear the clicks when I move from the different gears but no matter what I can not find a neutral.. also when it is any gear and I pull in the clutch all the way it will only roll for a few inches then the rear tire locks up like it is catching.

    I have the adjustment nut all the way tight (nut is at the last few threads). The clutch lever feels normal, I mean I pull it in and it rotates the piece on the engine to the right point, and when I let go the lever comes back normally.. What is wrong?

    edit: glad I enjoy learning and working on bikes.. so i watched youtube videos of how a clutch works and it appears as you pull the clutch lever the clutch pressure plate (big part the clutch springs press on) is suppose to squeeze outward.. well I took the clutch cover off the engine to see if it was at all moving.. simply no it is not. I pulled out a diagram via http://www.partzilla.com/parts/search/Yamaha/Motorcycle/1985/BIG+WHEEL+-+BW200N/CLUTCH/parts.html and noticed that part #14 on mine is slightly bent so going to order this, also I was completely missing the very end nut/washer (part 6 & 7) so looked in my bin organizer I was using when I started the project and found those.

    Question I have is, looking down the center of the axle that the entire clutch lays on, I see how part 14 fits in, but what is actually pushing the clutch pressure plate out? I remember the very long pushrod (part #26) during when I had the engine case split but forget actually where. I'd rather not split the case again but assuming when you pull the clutch that rod is suppose to extend out..

    edit #2.. OK think I got it now lol

    I placed a smal screw driver down the main axle and twisted the clutch actuator and could fell the pushrod in there move about 3mm or so.. the short pushrod (#14) and ball have seemed to seize together which does not help it's function. Also you can see how the threaded part on the rod is bent.. will be ordering these pieces.

    [​IMG]
  18. Röhrich

    Röhrich big wheel freak

    Joined:
    Dec 28, 2012
    Oddometer:
    196
    Location:
    Germany\Netherlands
    Does a Yamaha Ytm 225 cylinder fits on a yamaha bw200 engine?
    And when it does, do I need then another cylinderhead? or can I take the one of the bw200?

    Röhrich
  19. DEAVER

    DEAVER Been here awhile

    Joined:
    Jun 15, 2011
    Oddometer:
    138
    Location:
    Spaniard's bay,Newfoundland. Canada
    well my bike arrived yesterday, and looks awesome. won't be unloaded till tomorrow so i'll post pics when I get it cleaned up. should be sweet. small tear in the seat, no big deal. the gas tank looks yellowed, but not gross. I can live with it for sure. I have a replacement clutch handle ready to replace the broken one. basically my plans for this bike are very minimal. ride it around the yard and cabin, giving my sons rides.

    I use my can am renegade for everything else cause it rocks!

    its been 8-9 months since I paid for it.
  20. BWSwamper

    BWSwamper Been here awhile

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    Dec 3, 2012
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    Boggy Lowlands of Carolina
    Rohrich,

    There is a shop near Mainz which specializes in the type of increase in CC which you are considering. You will need to have some machine work done to the engine case, but it definitely can be done.

    Talk with Sebastian at http://www.tw-parts.com/.