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    Ablative paint hull prep

    Ablative paint is softer than non ablative paint. So if the non ablative is ready for painting it will work. Is the hull painted with an epoxy coat? If not check for blisters in the gel coat before painting. If no blisters, and the boat has been in the water for a season, you should be good...
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    Looking to repace my plexiglass wind shield

    Years ago I wanted to fabricate a plexiglass windshield for my speedboat. There was never any from the OEM. A guy from a plexiglass offered to heat and bend a piece of plexi around a mold that I made. I never did it, b/c the windshield would be twice the height the of my boat.
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    Near new old 1996 Mercury 115

    More states are legalizing drugs these days. That is the only explanation I can come up with, as those people must have been high.
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    Tower of power polished cowl wrap.

    Gee, I like 'em black, with the pretty decal colorings. I never did like the brown color, but the blues and silver and red are pretty.
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    88’ 135 Mercury Blackmax NO SPARK

    Batteries do not produce spark in that motor. Spark is created in the stator, amplified in the switchbox and pulsed to the coils when the trigger fires. I would check your wiring. It needs to be clean and tight. The black/yellow wires to the switchboxes (there are two on top of one another)...
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    Fuel connectors

    You can also buy another fuel line like you have and remove the upstream fitting, and slip the hose over the hose barb in the existing main fuel line. I do agree that you need to inspect the main tank. You will not get far with a 100HP motor and 6 gallons of gasoline. You will want 18 gallons...
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    Fuel connectors

    I presume you will use the built in tank the most, and the smaller tank as aux fuel, or transport of fuel from gas station to boat, right? If so, you can use the short fuel line when you use the small tank. Primer bulbs are pretty cheap. If you plan to siphon fuel from small tank into main...
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    rec gas and mercruiser

    A MPI Mercruiser 4.3 should start easy. You have other issues, I will guess. Repost that in MerCruiser forum for correct fix.
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    90hp merc slight bogging

    Idle mixture needles only affect engine at RPMs of 1200 and less. Low RPM of engine needs special, richer mixture than high speed operation.
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    Prop size

    One more thing. Run boat at WOT with normal load and max trim and then record max RPM.
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    Homemade C.D. unit to replace discontinued

    I expect the hard part of your task would be to rig up the trigger. There are likely lots of CDI units for autos and other applications Years ago (1970s) there were aftermarket CDI units. They used points as the triggering device, and zapped the standard automotive ignition coil with 300V or...
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    Reverse Rack and Pinon Helm direction?

    Very strange. Well at least you have it fixed.....
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    Fuel connectors

    Standard Johnny fuel lines have female fittings on both ends. These fittings have plastic hose fittings. The fuel line from your tank would also need a female Johnny fitting, with the plastic hose fitting, provided you want to run it directly to the motor. They should be available pretty...
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    rec gas and mercruiser

    According to Wikipedia, Rec gas is alcohol free 90 octane, unleaded fuel. If so, it is fine to run in your 4.3 V6. I would not expect any additional performance out of the motor, without modifications. You might be able to modify the ignition system to advance the timing, however, since the...
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    Reverse Rack and Pinon Helm direction?

    Well, I am not sure what your issue is. Steering rod goes into tilt tube on motor from starboard side, right? Steering cable travels up starboard side, right? Rack is parallel to stern, right? Steering "head" is installed with pinon gear facing up, right? Opening in rack casing faces down...
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    1987 mercury exhaust question

    The powerhead bolts to the exhaust extension. They have passages for cooling water into the powerhead, exhaust out and cooling water out of the powerhead. You might identify these passages when the powerhead is off. I think your assumption is correct that cooling water flows over the...
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    Power pack or switchbox?

    Powerpack is the term used for the switchbox, on Johnnyrudes. Same animal.
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    90 Jonhson starter rebuild

    Sometimes the grease on the bendix causes it to stick. Clean off the grease and lube it with motor oil.
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    Prop size

    You really need to run the boat at WOT. If the RPMs exceed 5500, then prop pitch needs to go up. Figure on 400RPM drop for every 2" of pitch added to prop pitch.
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    Reverse Rack and Pinon Helm direction?

    The rack needs to set on top of the pinon gear. The bolts go in from the top.
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