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    Carb Question on 115 Merc Inline 6

    Motor: 1987 Merc inline 6 115 hp. Carbs: WMK-41 Fuel: 89 octane unleaded My carbs have .076 main jets and .094 vents in them and the Mercury parts diagram and clymer manual says that the mains should be .074. The merc parts list says .074 for the wmk-41-A and .076 for the wmk-41B. I assume...
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    Water Separator on inline 6?

    I have a 1987 Merc 115 inline 6. My boat has two built in fuel tanks but it does not have a water seperator. I purchased a Sierra universal water seperator that came with two filters. The filters say that they replace merc part # 35-802893q. It is a 21 micron filter with a high pleat count...
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    115 inline 6 tach problem

    I have a '87 115 inline 6 and noticed right after I had bought it that the old tach on the boat would show anywhere from 2000 to 3000 rpm when I would start the motor and then I could tap on the tach and it seemed to start reading fine. It would also do this at wot and I could tap it and it...
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    115 Inline 6 Stator Problems

    I have a 1987 Mercury inline 6 and I started noticing that voltage gauge in my dash was peged out at 16 volts. Then I notice on my depth finder that it was reading nearly 17 volts. I done a search on iboats and noticed that people were saying that these older mercs would put out high voltage...
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    Adjusting idle mixture on 115 Merc

    I have a 1986 mercury 115 inline 6 that I can't seem to get the idle mixture set just right on. I started my adjustments with the screws turned 1 1/4 turns out from a light seated position. As I started screwing them out farther it seems to do a little better. I am currently at 2 turns out...
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