"my" jetting with DG pipe and stock airbox
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  1. #1
    Member Kirk Ross's Avatar
    Join Date
    Feb 2012
    Location
    Owasso Oklahoma
    Posts
    38
    Howdy folks, I just thought I would share my jetting since I have added the DG "O" series pipe, (ran good with stock jets, but has always been cold natured anyway and I wanted to richen it up a lil... I drilled out the fuel screw cap, and backed out the screw 2 1/2 turns, stock main jet on my 07 is 128 hex head, and I shimmed the needle up with two small lock washers I hammered flat (from home depot)

    originally I tried a "TK 130" main jet I ordered online and it worked OK but, it was a slotted head, not hex the bike seemed to bog ever so slightly when you gassed it in first gear (when I pop the front wheel up it would kinda fall instead of pulling on up...so I put the "stock" main jet back and problem solved, no bogging or cutting out and good smooth power through all gears, I havent had it WO in fifth gear yet but will try to report if theres any issue later (like if I need to remove a shim or something)...right now I can start the bike with a cold engine (it was 80 degress today, so not really cold) with no "choke" hit the button and she is ready to ride...



    Oh, and I also replaced the stock carb bowl screws with some allen screws (so in the future I wont round out the super cheesey stock screws



    ALSO, I never took the carb off the bike, by simply removing the throttle cables (just loosen the cable nuts, not the bracket they mount to, no need to, undo anything further) I could turn the carb in the boots to get to the bowl, as well as the needle from the right side of the bike, "IMO probly the best method" as I havent tried it any other way but after doing the main jet twice in hardly any time Im not sure how you could do it any easier



    Im no expert but If this is interesting or helps even one person then to me it was worth putting on here
    Kirk Ross



    1973 Honda CL100 Scrambler

    1983 Yamaha XS650 Heritage Special

    1996 Yamaha YZ250

    1997 Kawasaki KE100

    2005 Yamaha TW200

    2007 Yamaha TW200

    2007 Kawasaki Vulcan 500

    2008 Honda Shadow 750

    2009 Honda Rebel 250



    (current)2008 Harley Sportster 1200 Custom

  2. #2
    Member Jon H's Avatar
    Join Date
    Oct 2011
    Location
    Aurora, CO
    Posts
    85
    Thanks for taking the time. I'm also tempted by the shiny new pipe, but then I have to consider the needs of my other bikes...
    1987 TW200

    2000 Yamaha XT350

    2005 Yamaha Majesty

    2009 Honda Ruckus

  3. #3
    Member timberfalls's Avatar
    Join Date
    Nov 2010
    Location
    The Wet Coast
    Posts
    65
    Hi Krossroads I'm already looking into importing one of those DG pipes; did you get the silencer as well? are you going to stick with the stock 128 jet? Looking forward to hear about the speed test and what adjustments you make. Any rumors of a video of the final product?! hahaaha ttyl Timber
    Most motorcycle problems are caused by the nut that connects the handlebars to the saddle

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