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  1. #1
    Petty Officer 1st Class
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    Default Mercury 8 hp jumps out of gear???

    I have a late 80's 8 hp mercury outboard. The motor only has around 30 hours on it total. It starts and runs fine. Goes into gear smooth. But when I am about half throttle it kicks out of gear back into neutral. Reves up high and I have to turn the motor off. Clutch dog???/ Any ideas would help.... No shifter on the motor it is all done within the tiller arm from back to forth!

  2. #2
    Vice Admiral
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    Default Re: Mercury 8 hp jumps out of gear???

    My guess is also a clutch dog and maybe forward gear.
    Jim

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  3. #3
    Rear Admiral
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    Default Re: Mercury 8 hp jumps out of gear???

    Clutch dog is a good bet but there is still linkage from the tiller to the l/u.c/6Hooty

  4. #4
    Petty Officer 1st Class
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    Default Re: Mercury 8 hp jumps out of gear???

    There dosnt look like there is an adjustment for the shifter.... I am assuming since it only has 30 hours on it and ws used very little maybe something was messed up to begin with??? I think it would be the clutch dog??? Any other possibilities???

  5. #5
    Commander
    Join Date
    Jul 2002
    Location
    Oklahoma, Texas, Florida
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    2,980

    Default Re: Mercury 8 hp jumps out of gear???

    some times its always the clutch dog I run through them faster then your children run through candy!
    Mes amis nous allons quelque part dont tout
    le monde
    Se rappelle d'un endroit ou l'herbe etait
    toujours verte
    Et la fete ne s'arretait jamais
    A autour du rocher

  6. #6
    Lieutenant Commander
    Join Date
    Mar 2001
    Location
    Stockholm, Sweden
    Posts
    1,627

    Default Re: Mercury 8 hp jumps out of gear???

    From the tiller handle there is two thottle cables to the shift linkage. There is no shift cables from the tiller handle.#1 Tiller handle: http://www.dolleroffshore.com/parts_.../811286/31.gif #2 Throttle and shift linkage: http://www.dolleroffshore.com/parts_...R/811286/9.gif I don't think the pictures are any help. But I think your pop out of gear can be adjusted. I have the same model (1987). When I bought it and tryed it on my boat there was no real power at wot. Took a look at the linkage, took it apart and reasembled. I had power at wot, until I put it in neutral or reverse. Then the same thing again. Took it apart several times again and 30 minutes later I found out that one joint was almost stuck. Sanded the plastic, cleaned and greased it and it works fine. Well, that is not the same problem you have. I think there is someting about the linkage. Take a good look at it.Good luck!

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