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CALVINIST

Mercury Keikhafer problem....

Question

CALVINIST

Yesterday when I was out on the water, I was going full throttle when suddenly the motor jumped out of high gear. Fortunately, it runs in low gear, but I could no longer get in to high gear after that. When I got home I took off the prop to see if there was a shear pin, and I did not see one. The only thing I saw was the ridged shaft thea the prop slides onto. Any ideas what the problem is?

Thanks in advance. wink.gif

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Valv

I would suspect clutchdog inside gearcase. Check your cable linkage for adjustment, if it's a tiller you might have to to take it to a shop to have it fixed.

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Whoaru99

Time to upgrade? wink.gif

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MN621

Perhaps you could describe what you mean by coming out of high gear. I'm not aware of any outboards that have multiple forward gears. Does the engine RPM go up but the speed goes down or is the engine laboring? Depending on which it is, I might suspect a slipped propeller hub(high RPM) or a cylinder cutting out due to a bad plug, plug wire, or ignition coil(laboring engine).

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Shack

Ya! I know guys with Ford 6.0L diesel eng.'s with inj. concerns that swear it’s the tranny. I also know guys with coil over plug failures on their 4.6L and 5.4l and v10's that swear the same thing. In their case it's the plug or coil over plug. This could be the case. If I were you I would get a set of cup's and run eng. in drive way and see what prop is doing. Do not loose a finger, but I would be interested in seeing what prop is doing. At this time you can check for a plug issue as well. I would disconnect plug wires (one at a time) and see if there is any difference in eng performance with plug wire taken off. If you pull a plug wire (one at a time) and you get to one paticular cly. and there is no change in eng. rpm's, you have found your dead cly... When a cly. is operating properly (Spark and Comp) rpm's should change. If your motor would have only on plug, that’s a different story. Good luck

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  • Your Responses - Share & Have Fun :)

    • osok
      Been a brutal hard water season for me as well, figured it was a continuation of my fall fishing luck. 
    • Wanderer
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    • urbaniceteam
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    • eyeguy 54
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    • IceHawk
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    • Borch
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    • Tom Sawyer
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    • IceHawk
      Definitely a grind out prefishing cats today for the gathering.  Weather made it to tough but I Jeff  and his brother pushed through the elements to try and find a few active schools .   Locating the schools were tough took a pile of holes and the augers got a workout for sure,  but fortunately  we did find a couple active schools. Jeff and his brother found a few on one lake and I found a decent school on another lake. The good news was that both schools were cruising shallow flats in both locations and about the same depths. Great news as this is a good indication they are feeding on these flats.   Amazeingly both schools were found on a inside corner. Bingo looks like we have a pattern formed. We iced and marked  a fair number of cats in both locations so things are looking good for Saturday. Plus is we added a few for the fish fry already  Jeff I'll keep plugging away out there hopefully I can dial them in even more I have a hunch there are a few more close by where we ended. 
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