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    How many very new 4 stroke engines will be running trouble free at age 50 to 75 years old ?

    Parts availability is tied to demand. Generally, if there is enough demand, someone will make parts. It may not be the OEM, but someone will make it if enough want it. Hence the parts availability for SBC, and even the availability for parts from OB motors from the 50s and 60s. A whole lot...
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    Aluminum jon boat bench removal. Do or Don't?

    That seat also likely has flotation foam inside it. You will want that if you swamp.
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    82 50 hp tilt and trim

    If the motor pumps up under load, then the pump is probably fine. You probably have a bad control valve or leaking piston seals. Both will cause the cylinders to leak down. Crowleymarine shows both as NLA. As far as I know, the control valve is not rebuildable by us amateurs. The cylinders...
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    Rubberized or Epoxy undercarriage roll on for salt water trailer?

    I had a painted trailer in salt water. I sanded and painted with rusty metal primer. That worked somewhat but required a lot of work to maintain. Eventually I bought a galvanized trailer. The difference is night and day. The galvanized metal resists rust, and can be easily touched up with...
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    Acceleration problems

    for the 60*V motors (not sure about the 90* Vee motors), Idle jets are in the throttle bodies, with gaskets and covers over them. Did you clean them? Also, there is an air orifice which can get clogged on the carbs.
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    Tilt/trim assembly

    Take a look at the crowleymarine web site for your engine. They should have new PTT units avail, so at least you can get the part number, and look around for the best price. I bought a new PTT unit for my '93 135HPV6. It was about $950, if I remember right.
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    17 vs 19 vs 21 Pitch?

    If you change to the 19 P prop, your RPMs will likely drop by about 400RPM. You may gain speed, but it is not a certainty Tri-hulls tend to plane pretty flat, also making it hard to trim the bow up for more speed. Modular props are pretty cheap. It may be worth changing to a 19P prop. I...
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    gas from exhaust

    Some motors have a vacuum powered fuel pump. These can leak gas.
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    Required Safety Course

    I am 3 miles south of Toms River. The PP canal has always been an issue with the current and no wake restrictions, but here on the open bay, there is a lot more room to move.
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    Required Safety Course

    Airshot, Here in NJ, we do not get a discount (that I am aware of) for the boating safety course. However, I have seen a large difference in behavior after the boating safety course was mandated, especially in wave runner riders. Most people now drive their boats and wave runners fairly...
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    2005 Mercury 115 ELPTO No Spark

    Mark, Not that it matters much, but battery/coil ignitions often produce 20K volts. CDi was always much higher. An early aftermarket unit we installed on our 1970 Mercury claimed 600,000 volts. It took the battery voltage and stepped it up to 300V, and then sent it thru the ign coil.
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    1969 IMP "Thunder" 20 ft, Restoration

    Gee, I always liked teal for boats. I had a '67 Winner with about the same color for some time. Just my preference. I almost painted my speedboat teal, but the prep work necessary to make (a dark color) it look good was too much. I went with white, so the painting prep was manageable. I...
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    Boat Battery Questions - Cranking

    Gee, without a trolling motor, do you have any other big users for juice? If not two starting batteries is just fine. Two 24 series will work. Two 27 series is probably overkill. If you have any doubt about the condition of the batteries, do what the sailboat skippers do. Start the motor...
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    Engine cranking not catching

    Your motor is likely fuel injected, and it's systems are run by an ECU. You will need to get a service manual on it. Sometimes the ECU will turn off the fuel to the injectors, when it detects an issue. Alternatively, you may have some sort of electrical problem. You might doublecheck any...
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    Swapping to an opti

    The Optimax, depending on HP, may need an oil reservoir in the boat. They cannot run properly, due to their design, on premixed fuel, so drain your tank, and add the old fuel back in, a bit at a time. as you use the Optimax. The steering from the '94 should bolt up. The water pressure gauge...
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    1989 Mercury 200 Black Max

    The alarm buzzer is often under the dashboard. It could also be inside the control. On top of the motor is a couple of electrical devices. One is the monitor unit for the oil injection. The other is the idle stabilizer, if it had not been discarded by the PO.
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    Transom replacement.

    I replaced the transom on my speedboat from the outside. I would have liked to replace it from the inside however, I did not think the cap was strong enough to support it's own weight and would break when I removed it. Two key points when replacing the transom from the outside. Replace the...
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    Gear Lube lines plugged with bolts from previous owner

    It may well be, but he never reported a place to connect the gear lube reservoir tube, but reported the gear lube was good. It is a possibility, no?
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    Gear Lube lines plugged with bolts from previous owner

    Alpha 1 Gen I outdrives did not have gear lube reservoirs. Maybe you have one of those as a replacement for the original?
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    Leak into bilge, bellows?

    BTW- the exhaust bellows will not leak water into the boat if it has a hole or crack. It is sealed to the manifolds, which are also sealed, until above the waterline. A lot of Gen 2 drives come with an exhaust tube, rather than a bellows.
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