What do I need to complete this carb?
Close
    
    
Page 1 of 3 123 LastLast
Results 1 to 10 of 27
  1. #1
    Senior Member BBMS's Avatar
    Join Date
    Nov 2010
    Location
    Pensacola, FL
    Posts
    103
    I FINALLY picked up an old ('87) Tdub. The carb is missing parts, and so far, I think I need the screws that hold on the float bowl (M4 x 16 socket head screws?), a float bowl pin (probably float bowl as well), a needle valve set, a diaphragm set, a needle set? It appears to be a California model, and has a canister on the right side, with tubes leading from the tank area. I believe the main jet is bent. What do you suggest, and where do you suggest I get these parts? Thanks! Mark

  2. #2
    Senior Member biglefti's Avatar
    Join Date
    Oct 2010
    Location
    SCW, AZ
    Posts
    527
    I think you might find getting a used carb off ebay easier and less expensive too.

  3. #3
    Senior Member pgilles's Avatar
    Join Date
    Jul 2010
    Posts
    918
    I'd replace anything and everything that screws in or slides in to that carb. Needle, seat, float, float needle, main jet, emulsion tube, pilot, gasket, etc.



    I think 16mm is a bit too long. 10mm is what I used. 10mm is ~3/8 inches, so take a quick measurement with the bowl on there.



    Give it a good cleaning and hope nothing is stripped out.



    Go to the parts diagram for a full list of parts needed.
    Sold bike.



    Youtube vids of old TW's acceleration:

    Hidden Content

    Hidden Content

  4. Remove Advertisements
    TW200Forum.com
    Advertisements
     

  5. #4
    Senior Member biglefti's Avatar
    Join Date
    Oct 2010
    Location
    SCW, AZ
    Posts
    527
    This link should get you to the parts diagram for the 87 California carb at Ron Ayers.



    http://www.ronayers.com/Fiche/TypeID/26/Type/CARBURETOR_(CALIFORNIA_MODEL_ONLY)/MakeID/4/Make/Yamaha/YearID/28/Year/1987/ModelID/9234/Model/TW_200/GroupID/443463/Group/CARBURETOR_(CALIFORNIA_MODEL_ONLY)

  6. #5
    Senior Member biglefti's Avatar
    Join Date
    Oct 2010
    Location
    SCW, AZ
    Posts
    527
    This link will take you to a guy that is quite proud of his carburator.



    http://cgi.ebay.com/ebaymotors/CARBU...Q5fAccessories



    It does however give some nice photos of the carb in various stages of disassembly.

  7. #6
    Senior Member BBMS's Avatar
    Join Date
    Nov 2010
    Location
    Pensacola, FL
    Posts
    103
    Thanks for your replies! I was hoping there were "kits" available, like on other carburated machines (I've been working on old Gravelys of late). The majority of the carb is present, and yes, one probably should replace more items that can be. The one post that has been most helpful is: Link - Mark

  8. #7
    Banned qwerty's Avatar
    Join Date
    Jul 2010
    Location
    NW Tennessee
    Posts
    10,664
    www.stadiumyamaha.com is a good source of parts. They (and others) have exploded diagrams for shopping. After crunching the numbers a used carb may be a better deal.




  9. #8
    Senior Member biglefti's Avatar
    Join Date
    Oct 2010
    Location
    SCW, AZ
    Posts
    527
    Yes, I agree that the link you gave as the most helpful is a great link. I need to get my 89 to pass emissions and that link is going to make it easy.

  10. #9
    Senior Member demarko69's Avatar
    Join Date
    Feb 2011
    Posts
    540
    if you are trying to pass az emissions, the advice I can give you is a properly tuned carb WILL FAIL.

    the co. need to be less tha 5.00. the good news is they only test idle

    .5 turn the idle down to the lowest possible idle

    1. go way leeaaaaan, pilot screw almost closed 1/4 turn or less, pilot jet one size down

    2. new clean fuel

    3. no air filter

    4. new D8ea plug

    5. ride it there, make sure it hot, very hot



    one other thing, if the float level is too high it will also run rich.you may have to adjust for testing then re-adjust

  11. #10
    Senior Member biglefti's Avatar
    Join Date
    Oct 2010
    Location
    SCW, AZ
    Posts
    527
    Good tips. I did everything you said and also mixed about 25% seafoam into the gasoline. After two failures to pass, she made it following your instructions plus the seafoam. I'm not sure if the Seafoam makes a difference or not. Thanks for your helpful advice.





    Quote Originally Posted by demarko69 View Post
    if you are trying to pass az emissions, the advice I can give you is a properly tuned carb WILL FAIL.

    the co. need to be less tha 5.00. the good news is they only test idle

    .5 turn the idle down to the lowest possible idle

    1. go way leeaaaaan, pilot screw almost closed 1/4 turn or less, pilot jet one size down

    2. new clean fuel

    3. no air filter

    4. new D8ea plug

    5. ride it there, make sure it hot, very hot



    one other thing, if the float level is too high it will also run rich.you may have to adjust for testing then re-adjust

Page 1 of 3 123 LastLast

Sponosred Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Complete factory exhaust - like new.
    By WhereTheHellIsJames in forum TW200 Classifieds
    Replies: 4
    Last Post: 02-23-2013, 02:14 PM
  2. Looking for a complete wheel set
    By Woodi23 in forum TW200 Classifieds
    Replies: 0
    Last Post: 02-08-2013, 10:39 AM
  3. WTB: Complete rear wheel
    By ironweld7 in forum TW200 Classifieds
    Replies: 1
    Last Post: 02-07-2013, 03:57 PM
  4. (SOLD) FS: Complete TW Seat
    By koonercat in forum TW200 Classifieds
    Replies: 3
    Last Post: 08-26-2012, 03:55 PM
  5. Complete Teardown
    By assquatch20 in forum Technical Help
    Replies: 6
    Last Post: 09-11-2010, 04:11 PM

Search tags for this page

lizrdbrth

Click on a term to search for related topics.