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Thread: 05 brute force 750 with IDSX hard to start

  1. #1
    machz!!! Guest

    Default 05 brute force 750 with IDSX hard to start

    I've got a 750 brute force with the supertapp IDSX with 11 disc in it. I changed the jets to what the recommendations said #155 in front and #160 in rear carb and worked good but since i put the K&N filter and the dyna fs ignition box on. It has become hard to start cold and the end cap of the exhaust is really black. The only thing i haven't done is adjust the needle. I've just had the valves adjusted just to make sure that it wasn't the problem of hard to start when cold. I'm not a carb guru so any help will maybe put me in the right direction would appreciated!!!

  2. #2
    bschultz Guest


    The carbon (black) on the end-cap indicates a rich condition. Have looked at you spark plugs?
    Have you tried adjusting/turning the fuel screw (in or out)? Have you tried removing ALL the discs?

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