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Thread: Mikuni carburetor

  1. #51


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    Kailua, HI
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    1986 Dodge Power Ram 50
    Engine

    G54B
    CHOKE COVER DISASSEMBLY & FASTENER TYPE:
    (ALL 5 SCREWS ARE Tamper Proof Male Thread Metric M5 x 80) Tamper proof not required to reassemble choke cover; not sure why Mikuni used tamper proof fasteners on the choke cover piece... NOTICE THE MASSAGE MARKS FROM DREMEL GRINDING WHEEL TO MAKE A SCREWDRIVER SLOT TO REMOVE 3 steel TAMPER PROOF SCREWS & CUT OFF THE RIVET END OF 2 brass CENTER SCREWS...

    SCREWS2.jpgSecurity Screws.jpgCHOKE COVER SCREWS A.jpg
    Last edited by xboxrox; 08-06-2020 at 12:44 PM.

  2. #52



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    Sacramento, CA
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    1979 Dodge D-50
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    Chevy V6
    testing. No such attachments. They did not load for some reason. Make another post and go on. Just ignore it.
    Members come and members go, But the board keeps track of them.
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  3. #53


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    Kailua, HI
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    1986 Dodge Power Ram 50
    Engine

    G54B
    ----------- (1985 Mikuni PicknPull J/Y) ------------ ---------- (Original 1986 Mikuni) -----------

    Mikuni 1985 Carburetor.jpg Mikuni 1986 Carburetor.jpg

    Which one do ya think had the bad secondary throttle actuator..? Why ya think so..?
    Last edited by xboxrox; 08-06-2020 at 12:47 AM.

  4. #54

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    Adelaide, South Australia
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    1985 Mitsubishi L200
    Engine

    G63B
    Hmm. Good question. A badly fouled secondary throttle butterfly and a sketchy looking primary on contestant #2 HINT HINT
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  5. #55


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    Kailua, HI
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    1986 Dodge Power Ram 50
    Engine

    G54B
    Quote Originally Posted by geezer101 View Post
    Hmm. Good question. A badly fouled secondary throttle butterfly and a sketchy looking primary on contestant #2 HINT HINT
    THAT'S CORRECT the 1986 carby gave the truck much less power than contestant # 1

  6. #56


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    Kailua, HI
    Vehicle

    1986 Dodge Power Ram 50
    Engine

    G54B
    PROGRESS ~ Remove Carburetor: (finally working on doing it)
    1) Disconnect battery, done neg side anyway
    2) Drain coolant, done one gallon, should be enough to lower coolant level below the intake manifold PHOTOS BELOW
    3) Remove air cleaner, pending
    4) Disconnect throttle cable, pending
    5) Etc... pending

    My original Mikuni is in my apartment looking like a 500 piece puzzle ~ a PicknPull Mikuni is on the truck (but not for a lot longer)

    COOLANT DRAIN PHOTOS
    Attached Images

  7. #57


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    1986 Dodge Power Ram 50
    Engine

    G54B
    Moh Progress

    Began testing the carburetor selenoids in my apt; one test is complete & the selenoid operates good, not sure if it will operate correctly in the truck... I will check if voltage is sent to the selenoids when the ignition key is turned to "ON" by probing the carburetor main harness connector pins with a DMM... Maybe the selenoids only receive power when the truck is running & receiving commands from the ECM 'n TPS..? Not sure if the FSM explains testing the selenoids on the truck or not; too lazy to read today...

    The Gen1 Mikuni carburetor has a throttle opener/dash pot with a large diaphragm attached to a rod that operates the throttle to prevent it's opening 'n closing too quickly... I searched to locate a source for buying another one but this part does not seem to be available... It would be great to find a seller with this part... All other parts with rubber diaphragms are available on ebay & parts stores but quantities won't last forever...

    Aloha & Stay Safe --

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