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    Need a Marine Mechanic recommendation for the Ontario, California region.

    1974 Vintage 50 HP Thunderbolt. Recently purchased ran fine for a few hours and then poorly since. Need someone that has parts and service. Thanks
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    1977 Merc 500 Not getting enough Gas on top two cylinders at lower speeds.

    My old Merc runs well at WOT and higher speeds, but doesn't idle down and quits when it gets too slow. Tried adjustments but just will not idle. Seems like the top 2 cylinders are starved at low range. I pull the top 2 plug wires and it makes no difference. The top two are getting spark (boy...
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    Seating the prop shaft oil seals on a 77 500

    I am ready to seat the oil seals on the prop shaft but I am not sure how deep to set them into my bearing carrier. The double lipped seal (smaller of the two) looks like it would bottom out about 12 Hundredths too deep? Also would like to know what side goes in (toward the gears), A or B...
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    MinnKota Auto Pilot 36 LB. Owners Manual Needed

    Recently acquired a nice trolling motor with no manual. It is circa 1994. I need an owners manual for it but MinnKota has nothing for that old of a motor. Please Help!, Thanks
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    Where Does This Tube GO?

    In my parts kit for the water pump rebuild, I find a small tube that is about one and a half inches (1 1/2") long. I found nothing of the sort when I took it apart. I have a 1977 Merc 500 #4,79x,xxx. I find that it is on the parts diagram but I want to put it back on right. It fits over the main...
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    Drive Shaft Bearing-- What to do next?

    I just removed the base to my water pump on my 1977 Merc 500. Thus exposing the main bearing directly below that base. What my question is: What to do with it as far as greasing or lubing it before putting the pump back together. I did find some water drops on it when I removed the base of the...
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    Another Day at the Lake. Very Bad Things. Happy ending.

    Last year my old 77 Mercury 500 ran hard but had no decent "hole shot". Took it to my favorite fishing hole this year after a test run and it left us in the lake with just a paddle. We were towed in. After this effectively ruined the fishing trip, I put it in the shop and called my boat...
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    1977 Merc T-Bolt 50hp Need Help Ordering Lower Unit Parts

    I plan on taking my lower unit off and properly servicing it with a new water pump and the bearings and parts necessary to keep it running cool and watertight. I know what to get for the cooling part but not sure about the other necessary parts. I do have some water getting in and it is time to...
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    New stator arrived for 50 Merc Thunderbolt

    A quick question. The new stator that I purchased was a CDI. It has two yellow wires that go to the rectifier. They are both the same but the original wires differ. Does it matter which goes where on the rectifier? Thanks, Mike
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    !977 Merc 500 thunderbolt

    My 50HP Mercury Outboard runs at about 65% of full power for the first 15 minutes of operation and then it will kick up to 100% after a warm up period stated. I have two fuel pumps to install in the carbs as these are the only things not done to the carbs during the motor's renovation. Does...
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    Tilt Kill Switch (Mercury Switch)

    I have a 1977 Mercury 500 50hp motor. Do I disconnect the kill switch at the switch box terminal (orange wire) to check to see if it is causing an intermittent power loss? I just put a new wiring harness on and it will be a few days before I can get it to a lake for a test so when I go out and...
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    1977 Mercury 500 50 hp

    Recently purchased an older boat outfitted with an older 50 hp engine. Took the old girl for a test run and she would run smooth but only do about 5 mph. Took her out and ran it in a barrel to clean the carbs and took her out again. Same story. Cleaned out the gas tank and got a new hose and...
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