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  1. #1
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Great way to end a day of boating

    So, I'm wrapping up a day of boating and riding with friends, hauling butt across a choppy lake back to my truck and trailer and I seem to have lost any and all throttle authority. I'm still currently idling my way across all this water and bored, figured I ask the question how do I get behind the throttle to check the linkage there?
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

  2. #2
    Join Date
    Aug 2012
    Location
    Wolcottville, IN
    Posts
    761

    Default

    one place to check is on the engine and make sure that the bracket that hold the cable tight is still tight. I was hooking mine up tonight and the same thing happened... the clamp had come loose and all it was doing was moving the cable housing and not the cable itself.
    there was not enough resistance to move the throttle so it just moved the cable.
    86 Saltare


  3. #3
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Great way to end a day of boating

    Already checked all that while still on the water. Connection to the carb is rock solid...so much so that I had to removed the linkage at the carb so I could give it enough gas to get the boat up on the trailer.
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

  4. #4
    Join Date
    May 2006
    Location
    Nashville
    Posts
    2,127

    Default

    First go by sight. When you move the throttle does anything happen on the engine end? Anything? Movement, stiff, a wiggle?

    If nothing at all, then go back to the engine and disconnect it from the carb like before. See if you can move it in and out, basically pull and push on it to see if it's loose on the throttle end.

    You'll need to remove throttle assembly. I can't remember who just did this and gave pictures. That would be the easiest way to explain it.

  5. #5
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Great way to end a day of boating

    I checked it and also based off of feel, there was zero resistance in the throttle lever after this happened. I popped the dog house since I was at idle and checked for any movement of the throttle linkage when I moved the throttle. Again nothing, didn't matter one way or the other. The bracket that the throttle linkage bolts up to and the linkage itself on the carb were tight and strong, it was a challenge just popping off the linkage at the carb. It will be at least a few days before I go back to the boat to deal with this issue though so I guess I have more time to use that handy search function on these forums now that I'm home.
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

  6. #6
    Join Date
    Aug 2010
    Location
    NJ
    Posts
    1,393

    Default

    Same thing happened to me. Turned out to be the brass ends at the Morse control. I couldn't get the control through the opening in the panel so had to unscrew the panel, shimmy it out a bit, and reach behind. Check my thread here: https://forum.supraboats.com/showthr...-ASAP-in-Maine

    Skidim has these parts. Also unhook your throttle cable at each end and ensure it moves freely with little or no resistance. If it's tough to get through the full range of motion then check for sharpp bends and lube until it does or replace it.

  7. #7
    Join Date
    Sep 2004
    Location
    Hudson, WI
    Posts
    2,651

    Default

    I just had this happen last week. My issue was simpler -- I pulled the control assembly through the opening in the panel (it's a tight fit... need to move control lever to the perfect spot) and found that the cable had pulled off the controller because of a broken/missing cotter pin. I put some safety wire through there and gave it a few twists and called it good.
    Former owner of a 1987 Supra Saltare. Current owner of a Malibu 23LSV.

  8. #8
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Great way to end a day of boating

    Without looking at it yet, I'm thinking that due to the choppy conditions that exist on the lakes that I boat on and how the Comp rides like a Cadillac when there's even the slightest of chop... I'm thinking after years of pounding over waves something finally came loose back there where I couldn't see it as part of my normal checks.
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

  9. #9
    Join Date
    Mar 2012
    Location
    Chain of lakes, IL
    Posts
    194

    Default

    Quote Originally Posted by Jetlink View Post
    So, I'm wrapping up a day of boating and riding with friends, hauling butt across a choppy lake back to my truck and trailer and I seem to have lost any and all throttle authority. I'm still currently idling my way across all this water and bored, figured I ask the question how do I get behind the throttle to check the linkage there?
    Ohh and Jetlink forgot to mention that I also ran over his nice new Wakeboard rope yesterday. #chainlife
    1987 Supra Sunsport
    351 PCM

  10. #10
    Join Date
    Jul 2010
    Location
    N.W. Suburbs Chicago, IL
    Posts
    2,307

    Default Great way to end a day of boating

    Quote Originally Posted by mabbore View Post
    Ohh and Jetlink forgot to mention that I also ran over his nice new Wakeboard rope yesterday. #chainlife
    Haha, I'm not too wrapped up about that, plus the way I see it you weren't actually at the helm when that happened.
    '86 Comp TS6M - Reborn 2016
    Riding a HO Sports CX Ski

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