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Thread: SL750 Carb help

  1. #1

    SL750 Carb help

    Hi, New to the forum. I have a 95 Sl750. I just got the carbs cleanned and I am reinstalling them. A few questions I had.
    -Is there any tool that can be used to "Sync the carbs"?
    -Also my ski is bone stock and I was wondering if anyone can give me the idle mixture screw specs for a stock ski? I understand if I need to do fine tunning. I am just looking for a starting point.
    I have found the fuel pump upgrade and will be doing that shortly. I just need to get this thing up and running for the next week.

    Off topic but are the digital displays known for going bad?
    Thanks in advance.
    Kevin


  2. #2
    Moderator beerdart's Avatar
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    Welcome to the Hulk


    750 - Low Speed – 1/2
    High Speed – 1m, 1/2c, 3/4p


    For the MFD check the 1/4 amp fuse in the electrical box.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Welcome to the Hulk Iroc.

    Download the service manual from the tech section. It has everything you need in it.

    You can sync the carbs with a small drill bit if you read the manual on how to do it..

    And all the carb settings are listed in it as well.

  4. #4
    Quote Originally Posted by beerdart View Post
    Welcome to the Hulk


    750 - Low Speed – 1/2
    High Speed – 1m, 1/2c, 3/4p


    For the MFD check the 1/4 amp fuse in the electrical box.
    Thanks for the info.
    Now to do this I am going turn the screws all the way in then back them out the according amount of turns correct?
    For the MFD the fuse is good. I have proper power and ground at the unit. I suspect that the unit is shorted out.

  5. #5
    New problem. I am trying to adjust my oil pump. The manual is vague on how to adjust. I think I may have screwed soemthing up on it though. I can't figure out the rod throw. And the pump will only pivot from 3 o'clock to 12 o'clock rotating counter clock wise.

  6. #6

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    I think a lot of the Fuji engine guys are out on the water, or otherwise busy with their weekend.

    Hopefully one of them will pop in, and give you an authoritative answer.

    I am not really a Fuji engine guy, but I will try to help.

    There should be a small index mark stamped into the hub of the metal arm on the oil pump. That mark should align with a mark on the pump base, when the carbs are at idle position.

    The pump is designed so that if the oil cable breaks, the spring loaded arm falls back further than idle position. When it does that, it goes to 100% oil flow, to prevent engine damage.

    So you need to adjust the oil pump cable adjustments so that the index marks line up, then verify that the oil pump arm swings smoothly as the throttle is opened. Some guys adjust it so the index mark is just a little more than the index mark, to provide a little more oil at low throttle openings.

    At wide open throttle, the oil pump arm should be rotated almost all the way, where it would again be pumping 100% oil flow.

    When you have it right, the oil pump arm will swing through almost 90 degrees, just like the throttle plates do.

    Does that help?

  8. #8
    It does help thank you. On my ski it uses a rod not a cable. I can't really get in there to see the marks. I think I am just going to pull the pump out just to figure out if I broke something. Unless thats a bad idea. I can't wait to get on the water with this thing. You guys have helped allot.

  9. #9
    Many folks have removed the pump and gone pre-mix due to the problems with the pump, oil lines and the year of the ski.

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by Iroc-z View Post
    ...On my ski it uses a rod not a cable.
    I can't really get in there to see the marks.
    I think I am just going to pull the pump out just to figure out if I broke something. Unless thats a bad idea...
    Use a small mirror, or a digital camera set to close up mode.

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