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    Tachometer for 1978 Mercury 500 Thunderbolt

    Hi, what kind of tachometer I need for my outboard? 1978 Mercury 500 Thunderbolt 50HP S/N 4967035, after some tweaks I think it is running good but even being a small engine it is a thirsty one, it consumes too much gas to what I believe should be doing, we usually go WOT I want to change that...
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    Not shifting to reverse / 1978 Mercury 500 Thunderbolt 50HP

    Hello just recently I had issues with the motor to shift to reverse gear, no issues to forward only to reverse. It seems it wants to shift but makes some grinding and dont engage fully. Is there a set up procedure for the shifting cables any one can share? Thanks
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    Gas electric generator issues

    Hi I have an small gas powered electric generator, it is a 2 cycle motor, I hadn't used it in a couple of years, I couldn't get it to start up so I inspected and see that it had old gas there, fuel was not flowing, the float needle was stuck up so it didn't started. I Cleaned the carb got new...
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    Starter fluid everytime....

    Hello I have a 1978 Mercury 500 Thunderbolt 50HP, the motor idles good, runs good overall how ever every cold start needs to use some starter fluid, then when fishing I can move from one side to another with out issues then I stop fishing for an hour and to restart the motor I will need starter...
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    1978 Mercury 50HP Throttle and Shift cables

    Hi, can anyone directme to what throttle and shift cables I need for my outboard, it has a mercontrol also from that date. Regards
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    Throttle & Shift Cables

    Hello can some one help me to select the cables needed for my 1978 Mercury 50 HP outboard, it has a mercontrol... I see in iboats.com that there's the option of GEN I, would that work? What should I look for to know the exact type needed. The picture attached is from something similiar to mine.
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    Leg Length 1989 Force 85HP

    Hello, how can I know the length of the Leg of my outboard, or what is required for my boat. The outboard is a 1989 85HP serial 856X9F. The boat is a 1989 Bayliner Capri 1750. I'm looking for ourboards in case I'm not able to rebuild mine. Thanks
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    Mercury 500 Thunderbolt 50 HP Link and Sync

    Hello, I have an old 1976 Merc 500 thunderbolt 50 HP outboard, I want to check and adjust the throttle link and timing synchronization, I got the SELOC manual and it is not very good, the pictures in the book are all black and cant see well the items, I don't seem to find the right model of my...
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    1989 85HP Fuel Pump

    Hi I have a 1989 85HP outboard, I replaced the diaphragm but I noticed when buying for spares that my pump has booster spring and booster spring retainer, that matches the pump for the L-Drive version of this motor, but my motor is not L-Drive to my knowledge. My question here is what is the...
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    Milky fuel in carb intake force 85hp

    Hello I have a 1989 Force 85 hp motor, runing the motor WOT today it started working good then it started bogging and going slower maybe 50% the speed it usually goes, I opened the motor cover to inspect and noticed there is milky fuel in the carb intake, see the picture attached. Is this...
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    Force 85 1989 Water in gearbox / hole

    Hello I have a 1989 Force 85HP, noticed water in my last gear lube change, when inspecting the gear case I see a hole, please see pictures, this is a hole approximately 3mm diameter, I noticed some oil coming through but I'm not sure if having that hole in that place will actually cause a leak...
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    Force 1989 85 hp Overheated while WOT

    Hello, this is my first post but I've been following this forum for over a year and it has been very use full, now it's time to make my own question. I've seen several questions about overheating problems in this engines but I don't find one for a WOT over heated. Last week I went to a...
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