Recent content by spocter72

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    Outboard Winter storage

    Hello All; I have been told by a few people to let the engine "run out of gas". Normally I use the gas additive for storage (sta-bil).I think I need to know the answer from the experts here. Do I continue to use the gas additive OR is it best to run the engine out of gas so there is no...
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    Older 150 Merc Black Max idle problem

    Hi Guys I have an issue with this 150 merc that started yesterday and for the life of me,I can not seem to figure it out. When it is at idle,all of a sudden it will stop running on all the cylinders except for about 3.After a bit it will pick up and run normal again and continue to do...
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    Stumped on a fuel gauge problem

    Hello All; I have been having an issue with my fuel gauge. When the tank is empty, it reads 1/4 tank.I thought it was the sending unit, so I replaced it with a new one. The same problem exists. Here is what I've done so far. I have the sending unit out of tank and move the arm.Gauge goes...
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    Oil/Gas mixture??

    Hi All; I have an older Merc 150 BlackMax that used to be oil injected but that has been removed.(not by me) I have been using the same gas/oil mixture I use in chain saws (50:1),but the engine smokes quite a bit(blue smoke/oil). Could someone please tell me what the correct oil ratio...
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    1988 Merc Black Max 150 trim pump

    Hello, I have a 1988 Merc 150 black Max. Is the trim pump interchangable between the square motors and the round motors? Thank You
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    1988 Merc 150 tach setting

    Hello; I have a 88' Merc 150 6 cyl. I need to hook up the tach. Problem is that on the back of the tach it has 1,2,3,4,5 cyl switch and no 6 cyl. Could someone please tell me which setting I should use? Thank You
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    Carb Cleaning??

    Anyone know whats the best chemical to soak the carbs in to get all the varnish out and clean it up? Thanx in advance
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    Anyone interested in swaping Mercury Manual

    Sorry, this is soliciting, not allowed on the forum.
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    Black Max 150 Help please

    Hello All; I have a spark problem with a 1988 Black Max 150. I have 1 cyl on 1 side and 2 on the opposite side not firing. I swapped coil wires on the switch boxes to check the coils and they work.It has 1 switchbox for each side.Does anyone have any deas that might help find the problem...
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    1988 Mercury 150 Black Max Temp Horn

    Hello All, I have a couple of questions on this motor. I am new to this and need some help. I bought a boat with this motor,but alll the wiring was gone to the motor.I put a new wire(harness) to the motor,and have everything working except the temp horn. I think I really need that. Could someone...
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