THE BIGWHEEL THREAD!!! Yamaha BW350, BW200

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

  1. RWBWheel

    RWBWheel Been here awhile

    Joined:
    Oct 26, 2012
    Oddometer:
    130
    Location:
    Pacific Northwest-Everett Wa.
    MrBigwheel;
    Im all in for a mega bigwheel rally/camp-out anytime - next years Desert100 race would be a blast to get a bunch of bikes into.
    I would be curious to know who might all be in for such an adventure..
    Does either Hollywood/Nightmare ride/have the ' Red Headed Stepchild of Dirtbikes ' ??

    BWSwamper;
    I like the 12" rim look ALOT ! I was also looking into a bit longer shock and curious to see what you come up with. I just noticed when I have been bottoming out the 25" tire rubs on the exaust, ill have to see if I can adjust it some..
    [​IMG]

    vroom-vroom;
    come up and lets do the poker run iron man, I have a Bro. in Vegas who has a T-Dub 200 new and it needs scratches and a riding buddy for him. I have a spare bw he could ride in the desert but he hasent taken the hints.. I have been out to the dry lake bed Etc. around there with his ATV's and its great Bigwheel counrty..
    Ill take the GPS on next ride for a MPG on a 200 for you, been curious myself, im thinkin' some are guessing way low for the 200, where ive been riding has little flat ground.Lot's of elevation in a 3 hour ride.
    Gettin' ready for that iron-man run..at Walker Valley in this pic monday..
    [​IMG]
  2. vroom_vroom

    vroom_vroom screaming chicken

    Joined:
    Mar 13, 2013
    Oddometer:
    75
    Location:
    las vegas,nv
    Yea' come on!!!! I'm in it for next years run. Never been up there and it sounds like I can conn my some of the guys into a get away from the wife weekend..........
  3. greg24

    greg24 Adventurer

    Joined:
    Mar 12, 2013
    Oddometer:
    17
    Location:
    lewiston idaho
    does amy one know where i can get a owners manual for a 85 bw200
  4. epix1718

    epix1718 Been here awhile

    Joined:
    Sep 14, 2010
    Oddometer:
    734
    Location:
    Michigan/Indiana border
    Well after splitting the engine case and replacing the drive axle, I have the case back together, been doing it slowly as this is my first time doing such an endeavour. Next up is to finish attaching the engine accessories and the top end. If any of you guys needs to do the same just send me a PM to borrow some of the tools I purchased (flywheel puller, engine case spiltter, clutch holding tool).

    [​IMG]
  5. RWBWheel

    RWBWheel Been here awhile

    Joined:
    Oct 26, 2012
    Oddometer:
    130
    Location:
    Pacific Northwest-Everett Wa.
    Greg, when I got my 85's a couple manuals came with.
    The owners manual is almost all saftey warnings and im wondering if you are looking for a service manual. Oddly the owners manual in upper left was published in 1984 and the only difference I could find other than the cover calling this a 'N' model and the rear axle has a cotterpin and a diagram to go with it.
    The other manual published in 1985 calls it a 'S' model (wich I had not heard of ) and it has the rear axle with no cotter in the manual ..just like my 3 bikes have. Not shure if the peliminary bikes had cotters or not.
    I thought all 200's were either a 'N' model or an 'E' model ??
    Can Any senior guys jump in here??
    If you havent been to Sixpeppers Yahoo group it has many service links and the like in it....
    [​IMG]
  6. greg24

    greg24 Adventurer

    Joined:
    Mar 12, 2013
    Oddometer:
    17
    Location:
    lewiston idaho
    rwbwheel-yea you are right i want the service manual
  7. SoSlow

    SoSlow Having fun

    Joined:
    Jan 9, 2010
    Oddometer:
    933
    Location:
    Manitoba
    Hello!

    A friend of mine is having trouble with one of his 1985 BW200's and I figured I'd see if the owners here had any ideas.

    Here's a (hopefully) short description of the problem:
    - If he manages to get it running, it sounds like it's missing a lot and it needs WOT or it stalls.
    - When checking the spark, he only gets a good spark on the very first kick. Any spark after that is weak or missing.
    - In the same vein, if he lets it sit for 5-10 seconds or so after kicking it (and getting a good spark), he sees another good spark. If he keeps kicking or only stops for a second or two between kicks, the sparks are weak or nonexistent.
    - He's checked for spark both with and without the plug.


    Here's what he's done. I should mention that he's a capable wrencher, he's been riding for 40+ years and has maintained all of his bikes since the 80s (this has got him stumped, though):
    - Changed and gapped plug (multiple times now, I believe).
    - Swapped coil, CDI, rectifier with ones from running BW.
    - Replaced pulser with new one, confirmed it's within spec.
    - Replaced stator with new one, confirmed it's within spec.
    - Cleaned all grounding points and connectors, verified with ohmmeter.
    - Replaced spark plug cap.
    - Confirmed magnets are still in place.
    - Confirmed compression and timing are good.
    - Pulled everything off the harness he could (lights, switches).

    Nothing he's tried has made any difference, and swapping parts between the running BW and the bad one didn't fix any problems in the bad one or cause any in the running one.

    Despite swapping for a working one not solving the issue, he's still leaning towards the CDI because of the symptoms. He's a little leery about forking out a couple of hundred dollars on a hunch, though.

    Anyone else seen the same kind of behaviour or have any suggestions for things he should try or check next?

    Thanks for your help!
  8. vroom_vroom

    vroom_vroom screaming chicken

    Joined:
    Mar 13, 2013
    Oddometer:
    75
    Location:
    las vegas,nv
    I'm still on the new side to bikes but I'm a certified mechanic of the four wheeled variety. I could of sworn I was not getting spark on my bw, spent 2 days tracing and testing. Ended up being my main jet in the carb. Yet it ran fine a week before. Had my tester on the coil wire and it turned up nothing. Sprayed some goodness in the cylinder and no dice. Cleaned the carb and what do you know. Runs like no tomorrow. Not sure if it helps but sounds like a similar issue to what I had
  9. SoSlow

    SoSlow Having fun

    Joined:
    Jan 9, 2010
    Oddometer:
    933
    Location:
    Manitoba
    Sounds good, I'll mention that to him. Thanks!
  10. Röhrich

    Röhrich big wheel freak

    Joined:
    Dec 28, 2012
    Oddometer:
    196
    Location:
    Germany\Netherlands
    Hi fans of the Big Wheels,

    A long time ago I was here. I almost broke my hand with the Atc110:fpalm
    I just mounted the wheels where they have to be.
    It looks absolutly GREAT:rofl
    Here some pictures.
    A colleague of my dad made me my new Bushings for the swingarm.
    [​IMG]
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    Regards from Holland,

    Röhrich
  11. vroom_vroom

    vroom_vroom screaming chicken

    Joined:
    Mar 13, 2013
    Oddometer:
    75
    Location:
    las vegas,nv
    Had the big girl out in the sand, that is a experience to say the least..............

    [​IMG]
  12. Cliff h

    Cliff h [IMG]http://i219.pho

    Joined:
    Dec 9, 2011
    Oddometer:
    261
    Location:
    Anchorage, Ak
    Röhrich:

    Your bike is museum quality! We could change that pretty quickly with one ride to the Glacier up here in Alaska, bushings and all!! Love your BW wallpaper!!


    Vroom Vroom:

    Alaska lacks large quantities of sand dunes, the only ones we have are out towards the glacier. I would love to ride the BW on the "Dunes".


    RWBigwheel:

    How is that front tire working out for you? I was wondering about lateral traction in a front (steer) aplication. Hope to see you come Endurocross time, I've got everything except my airfare purchased. The only problem is that you will be able to see us ride without any video editing. Prepare for a large dose of dissapointment.



    Thanks everyone for the pics, it seems like up now, till Mr. Bigwheel had posted the only ride photos of late. I am loving the ride photos from everyone! Keep 'em coming!



    Cliff.
  13. BWSwamper

    BWSwamper Been here awhile

    Joined:
    Dec 3, 2012
    Oddometer:
    197
    Location:
    Boggy Lowlands of Carolina
    Röhrich,

    Your bike is absolutely fantastic. Good work!

    Keep us updated on the final assembly and test ride.
  14. Röhrich

    Röhrich big wheel freak

    Joined:
    Dec 28, 2012
    Oddometer:
    196
    Location:
    Germany\Netherlands
    [​IMG]
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    I found out that the engine of the Honda atc 200X is the same as the engine of the Fatcat.
    Where can I get this engine or parts?

    Regards,

    Röhrich
  15. Mr. BigWheel

    Mr. BigWheel b00b

    Joined:
    Mar 4, 2009
    Oddometer:
    756
    Location:
    South central Alaska
    Cliff is passionate about combining sports. This is from the weekend's ride, where Cliff pioneered a new activity that has elements from motocross, gymnatics and the 100 meter freestyle relay:

    [​IMG]

    Ten feet was the difference between a successful crossing and the swimming version. Cliff's dismount was epic. He nailed the landing (on his head) and let the 350 do all of the aquatics. He even extracted the bike solo while some jerk made snide remarks and took photos.

    [​IMG]

    The front fender and master cylinder were the most apparent victims. Another casualty was one of the bottles of Bass. May it rest in peace. Maybe cans would be a wiser choice.

    After a quick check of the airbox to ensure that no water had been ingested, we were on our way. Unfortunately, Cliff's forward velocity was limited to about 10mph by the sloppy conditions and lack of a front fender. I was forced to stand about idly, drinking the remaining Bass's as I waited for him to catch up.

    The moral? Beware of iceholes. They're everywhere.

    Regards,

    Mr. BigWheel
  16. Mr. BigWheel

    Mr. BigWheel b00b

    Joined:
    Mar 4, 2009
    Oddometer:
    756
    Location:
    South central Alaska
    Röhrich,

    As with all of these bikes of this antiquity, ebay seems to be the default destination for parts shoppers.

    However, many of these parts are still available from Honda, since they were used across much of the model line.

    A great source of information on three-wheelers is 3-wheeler world:

    http://www.3wheelerworld.com/forum.php

    Make sure that you misspell words and use The Official Southern U.S. Lexicon by sprinkling words like "y'all" and "howdy" into your posts. You'll fit right in if you remember that Nascar is a religion and Lynyrd Skynyrd is eternal.

    Regards,

    Mr. BigWheel
  17. NZer-BWheeler

    NZer-BWheeler n00b

    Joined:
    Jun 28, 2012
    Oddometer:
    6
    Hi all, have replaced my rear stock tyre on my 200 with a 25" rear, and have noticed an increase in speed. Was wondering if I can further increase it by down sizing the rear sprocket. Currently its the standard 37T. Would anyone know where I could sourse possibly a 35T . One other thing I have noticed in different threads is the talk of the rear sprocket being dished. I have a BW200N and the sprocket on it isnt dished at all, was this a later thought on newer models, or is mine not stock. The rear chain seems to run fine etc.
  18. Cliff h

    Cliff h [IMG]http://i219.pho

    Joined:
    Dec 9, 2011
    Oddometer:
    261
    Location:
    Anchorage, Ak
    The sprocket is dished on a 350, but I believe that it is flat on a 200 and will not interchange between the two bikes. If you want to gear down for a bit slower top speed, you will need to increase the size of your rear sprocket, or downsize your front sprocket on your secondary (rear) chain. I am not sure what is available for the 200's, but our beloved 350's sprockets are becoming increasingly difficult to find. Good luck!
  19. Moore

    Moore Adventurer

    Joined:
    Apr 4, 2013
    Oddometer:
    13
    Location:
    NB, Canada
    Hi guys,
    I told my computer illiterate neighbor that I'd do some research on his BW350 for him. I tried to find "the forum" (I figured there was a forum for everything) but all I can find is a Yahoo group and it wants me to get a Yahoo email address just to look at it. How 1990s is that?? I didn't even know Yahoo still existed lol. Is there a forum for these things?
  20. sticker

    sticker Adventurer

    Joined:
    Nov 24, 2012
    Oddometer:
    13
    Location:
    Peterborough, Ontario, Canada
    I signed up to the Yahoo group cuz I've had email with them for a long time but I find that site/forum to be a pain in the arse to navigate. I get updates via my email but I never go into the forum. Personally IMO this forum is much better both for pics and info. Yeah...Yahoo is stuck in the '90's!!!