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    1994 Mercury 40hp 4 cyl wrong crank case sealant

    Trying to figure out my problem on a 1994 Mercury 40 hp 4 cylinder. I replaced a piston and got all the cylinders honed by a reputable machine shop. I put it back together and used "loc-tite high flex form in place gasket maker"...
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    1995 90hp 2 stroke yamaha trim problems.

    Long story short, my tilt and trim solenoid went bad and I tried to loosen the manual release screw. It was completely stripped by the previous owner. So I had to loosen the hydraulic lines off to move the boat. (It was trimmed down and I was moving) Now my perdicament. (I know I know this is...
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    Mercury 100 hp 2 stoke 2+2 won't kick in other 2 cylinders

    Hey guys, I am having trouble with a 1999 Mercury 100 hp 2 stroke out board with the 2+2 system, this is the system where 2 cylinders don't contribute below ~1800 rpm. Serial number 0g881962. The problem I am having is that I lost spark on the bottom two cylinders that are supposed to kick in...
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    Frustrating electrical problem

    So working on my friends what we think 1977 190 hp 302 ford. It all started with a no start no crank, click of the key when you turned it. I replaced starter, starter solenoid, and battery cables and solenoid to starter cable with thick gauge welding cable. Now i did what I should have done...
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    2001 Yamaha 100 hp 4 stroke throttle shaft seals

    Hey everyone I'm hoping one of you smart people have the answer I'm looking for. I took the carbs off a 2001 100 HP 4 stroke for a cleaning. My mind was else where when I was doing the first one and I forgot to take the rubber throttle shaft seals out before I dropped it in my harsh carb...
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    Factory Service Manual for 3.0 GS

    I'm looking for a free, or cheap as possible factory service manual for a 3.0 gs model number 30 gs mnca Thanks alot.
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    Just another Tinny Resto

    Hello Iboats! I'm a long time reader, but this is going to be my first of many restoration threads. I have experience restoring boats, but I have learnt so many new tips tricks, and methods from reading threads at IBoats. This is my friends boat, he isn't very handy, and he is a stand up guy...
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    Trim Problems 120hp cruiser.

    Hey there, I thank you before you help me for the help, this forum is a life saver. I'm working on a 1985 Mercruiser 120, friends boat, they complained that the trim would only work to go down, not up. I check everything out, replace the battery connections, charged the battery and this is...
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    90 HP Tower of Power horrible fuel mileage

    Just finished rebuilding an 86 90 HP tower of power. Runs awesome. Doesn't idle the best sometimes, but that should be able to be worked out with carb adjustments and timing. Anyways ran a couple of times now, it will burn a 5 gallon fuel tank in about 45 minutes at about half to 3/4 throttle...
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    90 and 115 distributor-less block differences.

    So I am repairing a 1986 90 inline 6 that has a cracked block. I looked up the Mercury number, and it is 8311a4. I won a 115 block on ebay, distributorless also, the mercury part number is 8310a4. I need to know what the differences are between the two and if the block I won will work with...
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