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Recent content by Gene Kimberly Esper

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    Mariner 40C Carburetor question

    OK, got it back apart. Here are the indentations I was talking about (circled). I am not sure if they are just machined this way and the indentations serve no function ot not. I've looked here on line, other diagrams, and the Mariner owners manual, and there is no mention of indentations on...
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    Mariner 40C Carburetor question

    Hi guys, I took my carburetors off and under the main plate on top of the carburetors, there are a couple rubber gaskets and a very thin metal plate that goes under the gasket in the carburetors. The rubber gaskets look like they are cracking, so I would like to replace them. However, the...
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    Can't remove power head off 1987 40 HP Mariner. Please help.

    Hi all. I need to remove the powerhead from my motor, and I can't get it to budge...not even a millimeter. Manual says to remove the cowling, spark plugs, starter, recoil starter assembly, carbs, fuel filter, magneto, CDI base, linkage rods, the 8 bolts and washers that secure the powerhead to...
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    I need a new piston for my motor, but have 2 different part numbers. Which one??? Please help!

    I need to replace one of the pistons on a 1990 40 HP Mariner (Mercury motor made by Yamaha). There are 2 standard pistons available (part#761-8563M and 761-811828T). Both items can be purchased through...
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