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    Why Oil Injection?

    Gee, a lot of info here. Some of it is even accurate. Oil injection on modern carb or EFI 2 cycle engines mixes 2 cycle oil with gasoline in the fuel pump and fuel lines, on the way to the carbs or fuel injectors. Oil injection is more convenient (to some) than pre-mixing. Oil injection...
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    too much outboard for the boat?

    The motor is probably OK for the boat HP wise. I would not think the weight is an issue either.
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    Question about my engine wiring

    New engine harnesses are likely available as well. You might price one out. Sierra or another aftermarket manufacturer likely makes them as does the OEM.
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    Any tricks for wire corrosion

    Clean 'em up as best as possible and then apply good quality connectors, butt splices etc. I like the ones with the heat shrink tube, as they can (not always are) moisture proof. Some will argue for crimp on connectors, but you need special crimpers, connectors and technique. I like to...
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    1986 gauges

    Those old V6 Mercs do have low water pressure. The poppit valve opening at about 2000RPM may limit water pressure. Alternatively, my Johnny 150HPV6 runs at 30+PSI.
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    Engine stop when put into reverse. Evinrude 225 2002mod.

    Shifting into reverse pushes the shift rod into the gearcase. On my '98 Johnny V6, the shift rod cover had swelled a bit, gripping the shift rod tightly, making reverse impossible. The shift linkage simply flexed enough to make the operator think he had reverse. This situation can cause...
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    Lip broken off transom drain tube - options?

    You will need to dry fit the garboard drain and see if the hole matches. You may need to drill out part of the brass tube, as Garboard drains often have a projection into the transom. Also, some Garboard drain fittings are hollow, obviously on the inside part of the flange. I think the solid...
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    1986 gauges

    Water pressure indicates how well your impeller is cooling the motor. Impellers wear and loose pressure. Much better than a water temp gauge on Outboard motors, IMO
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    1986 gauges

    You will want a 0-15PSI water pressure gauge, 0-7000RPM gauge, a speedometer and a fuel gauge, IMO. Choose a set that is for outboards, and it should be compatible with your motor. The water pressure gauge fitting can be plumbed into the powerhead at several locations. See what works for...
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    Lip broken off transom drain tube - options?

    A bronze garboard (threaded) fitting installs from the outside with 3 screws. That should be a good replacement. Make sure to seal the exposed part of the transom before installing it. Polyester or epoxy resin is best to seal the thickness of the transom. silicone caulk is acceptable to...
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    Can I replace a Mercruiser 5.0L with a 4.5L engine?

    A 26 footer with a single I/O needs to be a big block, or it will be a dog, in my experience. A Bravo should be able to handle the 330HP from a BBC.
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    Trilux 33 on Bravo 3?

    I have also used Trilux on Alpha 1 OD in salt water. It works well. Reading the label shows that the OEM wants a good primer and paint coat to protect the aluminum from the Trilux.
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    Help with a 1992 Mercury 2 stroke

    Max, Your motor has a mechanical fuel pump, in addition to the impeller water pump. Follow the fuel line from where it enters the cowling and before it hits the carbs. Sometimes the fuel pump is built into the carb. Not sure on your motor.
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    Type of sealant to use

    Gee, I use silicone caulk to seal the cover over the fuel tank. No issues sticking to gelcoat there. I used it to install new scuppers. No leaks there either. It is tough to get off if you want to, though. There are silicone-off products that work a little.
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    1988 35hp - Multiple issues

    If the seals are gone the penetrating oil can leak into the crankcase. That is what you want. The prognosis for removing the gearcase is not looking good.
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    850 merc 73 thunderbolt

    Most Merc 150HP Black Max motors have the larger gearcase. There were a small number of V6 motors with the smaller gearcase. Your 850 should have the smaller gearcase. The splines will fit, but the hub will likely rub your gearcase, if it has the larger hub. I also doub't you will be able...
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    Air Intake Box

    If you see the carb throats thru the holes, they are for fogging the motor. I put a piece of duct tape over them after fogging is complete.
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    Help with a 1992 Mercury 2 stroke

    Sounds like a dirty carb. If you fill the carb bowl with fuel she should run a minute or so, if the carb is clean.
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    First Year Electronic Ignition?

    If your CDI unit fails, you need a tow. However, they are real reliable. If the points get out of adjustment due to wear, they can usually be readjusted well enough to get home with a screwdriver. I would not let points scare me away from a motor I liked.
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    Ford 302 coil voltage

    You might tell us the year of the engine. Most battery/coil/points ignitions from the 80s and older, use 12 VDC for cranking and 8VDC for running to help keep the points from burning.
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