Throttle response help
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Thread: Throttle response help

  1. #1
    Junior Member jdnphotography's Avatar
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    Throttle response help

    I have a 2016 and feel like the throttle response is a little slow? Any ideas? My current jet settings at sea level with FMF powercore are 130 jet out of the kit and 45 pilot and 2 washers on the needle.
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    2016 Yamaha TW200
    Deus Surf Rack / FMF Power Core Muffler / Ricochet Off-Road Skid Plate / Rox Risers / Seat Concepts Seat

  2. #2
    Senior Member Gastone165's Avatar
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    45 on the pilot? On 01-13 years the chart says the stock pilot jet is 31. Seems people replace it with a 34. That’s what I did along with the 2 1/2 turns and two washers and a 130 main. My 02’ runs great now compared to what it did before. All info thanks to the TW200 forum. 👍
    Last edited by Gastone165; 01-23-2018 at 12:11 AM.
    1972 Yamaha DT 175, 1974 Kawasaki 125, 1976 Suzuki TM 250, 1979 Yamaha 750, 1977 Husquvarna 360, 1979 Husquvarna 250, (2) 1980 Suzuki RM 400’s, 1971 Husquvarna 400, 1983 Honda V65 Magna, 1987 Suzuki 230 Quad, 1987 TW200, 1990 TW200, 1996 Honda XR 650, 1998 Yamaha 300 King Quad, 2000 Harley Davidson Heritage, 2006 Kawasaki KLX 250s, 2007 Arctic Cat 650 Quad, 2010 Polaris Sportsman 850 Quad, 2006 Yamaha Grizzly 660 Quad, 2002 TW200, 1995 TW200, 2008 TW200, 2016 TW200.

  3. #3
    Senior Member elime's Avatar
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    Sounds rich. Go back to stock setting then make changes. I bet the spark plug is very black velvety carbonized.

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    Last edited by elime; 01-23-2018 at 12:05 AM.
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  5. #4
    Senior Member Tweaker's Avatar
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    So the 45 pilot does seem very big. I could tell my #31 pilot was too small because when I opened the pilot screw past two turns it did nothing. The #34 had a better response when opened and I could find the sweet spot. I did plug chops and high speed runs to settle on main jet at 130. What thickness are your washers? I ended up with three washers I think they are .02”. My wife’s bike had better acceration when I was using two it turned out I hadn’t pushed the nylon spacer all the way tight against the washers and e clip. So I went to Three washers. Now my bike seems a little rich in the midrange. So I may sand down a washer a little bit on that needle.

    Here is a link to plug chops.

    Plug Chop how-to
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    Twin 2014 TW200's made side by side on the assembly line, Moose rear racks, Protaper ATV high bars, DG oval pipes, kick starters, rejetted carbs, 130 main jets, 2 -3 -.020 shims on the needles and @ 2 1/2 turns on the pilot screw, #34 pilot jets, Acerbis hand guards, Shinko 241 front tires, modified Krator foot pegs, 14-55t sprockets, Ricochet skid plates and 90 degree fuel filters.

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