What can I do to make my tdub start and idle better? - Page 3
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Thread: What can I do to make my tdub start and idle better?

  1. #21
    Senior Member Tweaker's Avatar
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    A new pipe and jetting is not going to make the bike wheelie just louder. I bought mine cheap with the pipes because the PO had trouble tuning the carbs. I like them but I am not sure I would go out and buy pipes if they didn't have them. If you need a new pipe and like the look and sound then go for it. Be prepared to rejet.

    You can learn wheelies on a TW is it a clutch technique. There is a youtube video on how to do it. Be prepared to dump your bike while learning so maybe not learn in the street.

    If your boots are stiff they should be replaced, that cracked one definitely. Also as elime says about the main jet replace the pilot jet for the same reason.
    Last edited by Tweaker; 02-03-2017 at 09:01 AM.
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    Twin 2014 TW200's made side by side on the assembly line, Moose rear racks, Protaper Bars one with risers, DG oval pipes. rejetted carbs, 130 main jets, 2 -.020 shims on the needles and @ 2 1/2 turns on the pilot screw, #34 pilot jets, Aserbis hand guards, Shinko 241 front tires, modified Krator foot pegs, 14-55t sprockets, Ricochet skid plates and 90 degree fuel filters.

  2. #22
    Senior Member fishguy's Avatar
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    Yes. Bummer. On my '95 TW the old boots had also shrunk so that the fittings were mis-aligned. The connection of the carb to the head MUST be air TIGHT.
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  3. #23
    Senior Member elime's Avatar
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    Cut those rubber tabs off and you will be able to rotate the carburetor without ripping the manifold.
    Long live the internal combustion engine!

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  5. #24
    Senior Member Rokon84's Avatar
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    Does anyone have the link or info on where to find the $15 carb boots?
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  6. #25
    Super Moderator littletommy's Avatar
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    Not sure about cheap boots, but if you need a intake manifold...

    Carburetor Adapter for Yamaha TW200 2JX TW 1987 2000 Joint Carburetor New | eBay
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  7. #26
    Senior Member Rokon84's Avatar
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    A $13 carb kit is prly junk right? Comes with a116 and 38 jet. My current jets are 114 and 40?

  8. #27
    Super Moderator littletommy's Avatar
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    I think you are better off buying original Yamaha parts for the most part.
    Quote Originally Posted by Rokon84 View Post
    A $13 carb kit is prly junk right? Comes with a116 and 38 jet. My current jets are 114 and 40?
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  9. #28
    Senior Member ToolmanJohn's Avatar
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    BOATS.net for all those small parts if your local Yamaha dealer is too far away.

    The small parts are cheap. Get Yamaha OE parts.
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  10. #29
    Senior Member Rokon84's Avatar
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    So is the consensus to stick with new 114 & 40 jets if I buy new ones ? Or would some of you recommend a different size? I May be near a Yamaha dealer tomorrow to buy parts. I Also noticed when I installed the pilot screw that the oring was on it but I didn't seem to feel much resistance from the oring, so maybe I should replace it or better yet just put a carb kit in. Maybe that oring has shrunk ?
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  11. #30
    Senior Member elime's Avatar
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    Quote Originally Posted by Rokon84 View Post
    So is the consensus to stick with new 114 & 40 jets if I buy new ones ? Or would some of you recommend a different size? I May be near a Yamaha dealer tomorrow to buy parts. I Also noticed when I installed the pilot screw that the oring was on it but I didn't seem to feel much resistance from the oring, so maybe I should replace it or better yet just put a carb kit in. Maybe that oring has shrunk ?
    Personally I would stick with the 114 / 40. On my TW with the 70mm piston I have gone to a 112 jet and noticed a slight improvement -- I tried a 110 but didn't notice any improvement so back to the 112.

    Affirmative on a good o-ring for the pilot screw. I had one with a worn o-ring and it leaked so much air no matter how much I unscrewed it the mixture didn't get any richer. With a new o-ring all was good.

    Try putting the pilot screw in upside down to test how well the o-ring is sealing. If it is real loose it isn't sealing at all.
    P3190026 (2).JPG
    Last edited by elime; 02-03-2017 at 10:16 PM.
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