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Thread: Mikuni makes alot of noise with best setup

  1. #1
    Join Date
    Dec 2014
    Posts
    0

    Default Mikuni makes alot of noise with best setup

    I have worked my way up to 18 discs and an open end cap. The plugs look great - throttle response good and top end alright.

    Problem - the infamous "Mikuni quack" (slide rattling at idle) is as loud as the muffler.

    Seems as though there might be too much back pressure and restriction at idle.
    FXDL - Woods W6 cam, heads ported and flowed

    Any suggestions on what to try next?

    Thanks in advance - TP

  2. #2
    bschultz Guest

    Default

    18 discs and an open end cap is basically "flowing the core"...in other words you can take the disc assembly off and it shouldn't make any difference, you are at the maximum exhaust flow of the core (unless of course the self made spacers on the discs were distorted from to much torque).

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