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    ‘91 merc 60hp overheating alarm buzzing

    Did my model have no head gasket?
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    ‘91 merc 60hp overheating alarm buzzing

    Thank you this is very useful
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    ‘91 merc 60hp overheating alarm buzzing

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    ‘91 merc 60hp overheating alarm buzzing

    Thank you for the information on how the poppet system works. I compression tested each cylinder at about 110 on each cylinder so that’s good. Now I’m having an issue with the alarm just giving a constant beep at all times. Even after the motor sat cold for days, as soon as I turn the key the...
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    ‘91 merc 60hp overheating alarm buzzing

    Will be testing tomorrow. Does the poppet valve still allow water to flow through the engine at high speeds even if the thermostat is stuck shut?
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    ‘91 merc 60hp overheating alarm buzzing

    So to update. I replaced impeller and got a new t stat. I tested the t stat to see if it was opening properly and found that it was not opening at all. I never had the alarm go off at high speeds only at idle speed and it continued to pump water. I’ve had it out a few times before replacing the...
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    ‘91 merc 60hp overheating alarm buzzing

    I’m going to replace the impeller and thermostat and start there. Problem is I’ve had this boat out a few times so how can I also check for damage besides a compression test?
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    1991 60-HP wont trim down

    Yeah I noticed that when looking for parts
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    ‘91 merc 60hp overheating alarm buzzing

    Hi everyone so I have a ‘91 merc 60hp 2 stroke (elpto) and I have been running into an issue with the over heat buzzer going off. So at first the basics, alarm only goes off when at idle speed in gear (going through a no wake zone) the tell tale is pumping water well, the block does not get very...
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    1991 60-HP wont trim down

    Problem solved it was the relay itself. Thank you
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    1991 60-HP wont trim down

    So I have a 1991 60-HP [ELPTO] 2 stroke It trims up fine but won’t trim down. If I fiddle with the wires going to what looks like a relay box sometimes trims down. I attached a photo below. Any idea for the part number? I checked Crowley and marine engine but I want to make sure I get the right...
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    Merc 60hp 2 stroke identification

    Thank you very much I assume the 2.5hp 2 stroke merc i have is a 1991 too as they have the same design. Could you help me identifying the serial number for this 2.5hp I am looking for a lower unit drain plug washer for it as well. Serial: 0D908420 3d5
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    Merc 60hp 2 stroke identification

    Hi everyone I have this mercury 60hp that I just got on my new boat. Can anyone help identifying the year as well as the serial number? Im looking for new new lower unit plug washers for the gear oil screws. Thanks.
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    Spark plugs for 60hp 2 stroke

    Thanks. Any idea where I can find the tank that holds the 2 stroke oil mine is cracked at the bottom.
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    Spark plugs for 60hp 2 stroke

    It’s a merc outboard
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    Spark plugs for 60hp 2 stroke

    What plugs are recommended for a 1991 3cyl 60hp 2 stroke ? I also have a 1991 2.5hp merc 2 stroke that I need a plug for as well.
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    1965 Johnson 6hp spark plugs

    I can get j4c and j6c but I just purchased the motor and the previous owner put new champion j8c’s so I don’t see any reason to change them if I don’t have too. Checked the gapped and they were at .030
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    1965 Johnson 6hp spark plugs

    Can you run J8c’s on a 1965 Johnson 6hp is it too hot of a plug?
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    1956 Johnson 6hp versus evinrude 6hp pros and cons

    It’s not a gear case issue. It’s more like a slight mis fire that happens very occasionally. It happens both in gear and and in neutral.
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    1956 Johnson 6hp versus evinrude 6hp pros and cons

    V hull about 11.6ft with 3 seats.
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