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    Can someone identify this lower unit? How can it be confirmed?

    I am use to older (70's and 80's) omc 3 cyinders. This lower unit looks very similar to OMC. It has a 20 spline drive shaft (as opposed to the 4 spline on my OMC) but a 13 spline output shaft that will accept an OMC prop. The shift rod has a kick instead of an offset like my OMC. I had a Suzuki...
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    Build up of something (salt or scale maybe) on bare aluminum parts after only 2 trips

    Probably 95% of the rust on the troll motor and all of the white film on the motor and jack plate occured after just two fishing trips (in salt water). It appears to be plating and I suspect it is caused by an electrical condition. Anything that was bare aluminum in contact with the water got...
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    1998 Merc 200 hp outboard oiling system dependability?

    I am told that there is a plastic drive gear on the crank that runs the oil pump and that it is common for them to strip out. I am getting an oil system warning alarm but have confirmed that the alarm is false and that the oiler is working properly. Now I am faced with replacing a $100.00 sensor...
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    How to freshwater flush a 1994 Yamaha Waverunner 3

    1994 Yamaha Waverunner 3 (650 cc), has a hose with what appears to be a quick connect (reminds me of a hydraulic quick connect I see on tractors except it is plastic) for flushing. I bought a manual but it does not reference this connection or give a flushing procedure at all. I remember once...
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    94 Yamaha Waverunner 3 carb adjustment help needed

    I will try to run my Waverunner this weekend for the first time since I got it. I rebuilt the carb carefully putting the adjustment screws back to where they were. Can someone give me a good guideline or go by for adjusting the carb to make sure I dont lean it out too much and burn the thing up...
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    98 Merc 200 HP oiling system false alarm, what is most likely the problem

    I have determined the oil pump IS turning and pumping. I get the three beep signal when the key is first turned on but when the motor is started it pulse beeps continuously. So it would appear that this means the pump rotational sensor or the module is bad or both. -Is there a way to...
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    1998 Mercury 200 hp tattle tale water line question

    My motor only p's water when the thermostats are open. I can see the water pressure gauge move slightly when idling so I can tell its pumping. Can I hook the tattle tale drain to the same hose as the water pressure gauge so it p's all the time? Or is it supposed to be connected to the t-stat line?
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    1998 Mercury 200 hp prop question

    I finally got my boat in the water and have not looked at the prop closely to try and figure how these merc props work (I am use to OMC and Yamaha). It is a Mercury Marine Bravo 3 blade stainless prop. I put it in gear to tow the boat and when I checked to make sure it was in gear, the prop will...
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    Fuel gauge circuit componant I.D. and Auto vs Marine gauge differences

    It seems automotive style fuel gauges use a heater/bimetallic strip circuit for the movement which provides for a steady needle (slows the response time). I can get an automotive style fuel gauge from Oreilly for $17 that operates in the same range as most marine gauges (30 to 240 ohms). I...
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    Gapless plugs on my 200 HP, is there a reason? Is this the plug to use?

    I just purchased this boat/motor (1998 200 HP Merc carbeurated) and it has those plugs in it that are flat on the end less the little arm over the electrode. When I saw them it came to mind that the previous owner might have installed them to overcome a fouling issue maybe? I will change the...
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    How to remove the tilt cylinder top pivot pin on a 1998 Merc 200 HP

    1998 Mercury 200 HP. I want to take the top pivot pin on the tilt cylinder rod out to lubricate it while I replace the trim sending unit that is bad. I see what could be the keeper (has a nail like head) but it does not move easily to pull or unscrew. Does it press out, unscrew? Thanks
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    Electrolysis question, 12V + hanging out there

    My hydraulic steering fittings hit the transom if the motor is tilted too high with the jack plate down. I set up a safety limit circuit but if I wire it the way I would like to, I will wind up with 12 volts + on the aluminum transom cap at all times (except when it is limited out). I run the...
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    Where to get the best submursible trailer lights (rectangular style)

    I have a trailer that has the rectangular lights (as opposed to the typical square ones). I will purchase LED lights for it and wondered if any brand is better than another? I found the square ones at Academy that say they are sealed and are submersible but not the rectangular ones. I considered...
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    Which electric fuel pump to use for priming my 98 200 HP carbed Mercury outboard

    I will install an electric fuel pump to overcome my priming issue. I have a 1998 200 HP Mercury carbureted motor. Will this work and will the floats shut off with a 3 to 5 psi pump? Any suggestions on which pump to purchase? Thanks, Kevin
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    Mercury fuel pump suction thru anti siphon valve

    My tank is in the hull and the fuel line is uphill all the way to the motor (1998 Merc 200 HP carbed outboard). I installed new 3/8" fuel line with a primer bulb nearer to the motor (12' from the tank). Once primed, no problem but when shut off, the fuel in the line drains back into the tank. I...
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    Fuel line draining back to tank. Do they install check valves in boat fuel lines

    I installed new fuel line all the way to the motor (outboard) with new primer bulb. It primed (took a bit) and the motor ran fine but after sitting for an hour, I pumped the bulb again and it was dry. The tank is in the hull so is the lowest part of the fuel system and I am pretty sure the fuel...
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    What should the tongue weight be on a boat trailer?

    It seems there was a thread on this not to long ago and someone had a formula for it. I searched for it with no luck. I found one site says 9 to 15% of the total weight of the loaded trailer but that seems high. I figure my rig weighs about 3500 lbs, 10% would be 350lbs, that seems high to me.
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    Is there an ad section here somewhere to buy and sell boat parts?

    I will retire my old 1969 Flagship 15" glass boat. In Houston I will be lucky to get $300.00 for the boat and trailer and motor (shot). It has some good parts on it and I would do better parting it out. I see the classified section for boats but not parts.
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    Will my 94 Yamaha Waverunner 3 run without a fuel gauge?

    Two wiring harnesses to the gauge, one with 2 and one with 4 wires. I am not sure what all the gauge displays but if just fuel level it should not need more than 4 wires or maybe 3. Havent ran the ski yet so I do not know about it. I made a window out of the old (bad) gauge and will install a...
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    11 year old aluminum tank, how much life left?

    I hear alum tanks are notorious for leaking and based on some preliminary information figured mine was leaking as well (just got the boat). I did a pressure test on it and it is has held 4 PSI for 2 days now. Can I be sure this thing will last a bit longer since it it holding pressure or is it...
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