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    Mercury motor swap

    You may be misled. The PTT unit on your '82 is unique to motors of that 'svintage and older ones back to the 70s. The trim switch on your newer controller is compatible with the PTT unit on the '82. I doubt any of the components of the '82 PTT unit will work on the newer motor, as they were...
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    Blower motor popping circuit breaker

    Push button circuit breakers do wear out. Blowers can also get corroded. A resistance check on the blower circuit can tell you what is wrong. Alternatively, you could replace the circuit breaker with a fuse, rated for the current draw of the blower and see if it blows.
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    Mercury motor swap

    The newer trim/tilt control will work with the older motor. Unplug the trim limit switch on the '82. Put a jumper wire across the trim limit switch connectors on the main trim harness. Now connect the blue trim wire to the up side of the new control, and the green wire to the down side of the...
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    Need help

    Goofy, The wiring harnesses on those motors are pretty well shot by now. Has it been replaced? Those motors need to have +12VDC on the red and adjacent white wires on the switchbox to have spark. The CDIElectronics has a test for wiring, switchbox, distributor cap and other components. It...
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    Trailer Wiring

    I would measure the resistance of the brake light filament of the tail light bulb. Now measure the resistance of the green wire and yellow wire individually, and see how close you come to that resistance reading. Lower resistance means a short exists. Measure the resistance of the tail light...
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    XR4 Blackmax 150 - can't find a prop to fit

    Merc and others made props for the 4+ 6 cylinder inline series of Mercury engines for a long time. These motors had the 4-1/4" gearcase. I would expect those would fit your motor, and are available in pitches up to at least 24". I would specifically investigate props for a '78 or earlier...
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    1988 Merc 200 HP Smoking during warmup.

    Yes, but the good news is that we will only have these types of discussions for maybe 20 years more. By then, almost no 2 cycle motors will exist. They we can argue about whether FC-W oil is the right stuff for our 4 cycle outboards, or whether we should use automotive multi vis oil. I cannot...
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    1988 Merc 200 HP Smoking during warmup.

    Amen
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    Mercury 115 loses power at 3000-3500 RPM, and none of my console gauges are working.

    What year is the Merc? Inline 6, Inline 4? What kind of controls do you have?
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    1988 Merc 200 HP Smoking during warmup.

    OK Dingbat, so vast left wing conspiracy then.... I would not recommend to anyone that they run non TCW-III oil in their 2 cycle motors that call for TCW-III. Now there are some oils (Mercury?) that are rated for DI use as well as TCW-III use. Anyone who runs a DI motor on an oil not rated...
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    1986 power head source

    A short shaft motor is for a 15" transom. 15" transoms are found on Jon and aluminum semi vee boats 14- 16 feet and under. Likely Black Max's, being higher HP never came in that length. Long Shaft motors are for a 20" transom. There will also be a fair number of Black Max Xl shaft motors...
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    1988 Merc 200 HP Smoking during warmup.

    A lot of Direct Injection oils are not TC-W. That is a different animal, as they are certified for DI motors, usually by the OEM. The OP has a carb 2 cycle motor, and should run TC-WIII exclusively.
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    1988 Merc 200 HP Smoking during warmup.

    Dingbat, so what you are saying that it is a vast right wing (or left wing) conspiracy to discriminate against the 2 cycle oil industry? So we should guess that the non TCW-III 2 cycle oil on the shelf is fine for our $20K outboard motors? Not sure I want to guess. That is just me.....
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    shift and throttle cables

    Control cable length is not the issue. That will probably be fine. The motor ends of the control cables are different, though. Mercury and Johnnyrude shifters are different. Mercury pushes the throttle closed. Johnnyrude pulls the throttle closed. A lot of aftermarket (non Merc or...
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    Is my boat polyester or epoxy?

    The polyurethane I saw at the Home Despot looks to be made by rustoleum. I have not used it. The price was $16/qt, and they had many colors. Brightside is a good Marine Polyurethane paint that I have used. It is expensive, but a qt goes a long way. I have sprayed it and rolled and tipped...
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    Water pump carrier dilemma (2006 optimax 200)

    Likely the lower unit on the Optimax went bad, and was replaced with one that was lying around. I swapped out the gearcase on my '93 Merc 135, with an '88 Merc 150 to get the shaft length I wanted. I had to use a midsection stud from a '73 Merc 850 as the final stud to make the switch.
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    Is my boat polyester or epoxy?

    OK, so your paint choice is not required by the epoxy, but by your standards. That part of your post was confusing to me. There are some real nice 1 part marine polyurethane topside paints. They are not cheap, but work and look quite good. Some swear by marine enamel as well, which is...
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    What would you put in a small outboard repair kit?

    Depending on the year of the motor, a lot of the stuff you listed may not be useful. Motors tend to run until some electronic component fails, or you break something. If an electronic component fails, you won't have a spare or the ability to install a spare. Certainly take hand tools and some...
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    Is my boat polyester or epoxy?

    Why exactly do you need an expensive two part paint to cover epoxy?
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    1986 power head source

    iBoats used to have links to rebuilders. I bought an inline 6 150HP block from one of them
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