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  1. K

    40 hp merc 4 stroke 2008

    i turn on the ignition to the mid way point and it blows the 20 amp fuse right away. any guesses what this feeds or what i might check? thanks
  2. K

    2007 4 str. 60hp merc alarm

    hello the above motor starts and runs great. when you first turn key to start it does then alarms 6 loud beeps. then its quiet. ideas? great site and thanks in advance tim
  3. K

    temperature coolant sensor

    I have a 2005 Merc 30 HP 4 Stroke EFI. I am looking to replace the coolant temperature sensor. The sensor that makes the alarm if you have a bad impeller for example. Would anyone know where to look on the engine and what it would look like? Thanks, Dave
  4. K

    1999 Optimax 150 fuel question

    Hello, I have a 1999 mercury optimax 150 hp. I have been having trouble with it not idling. Very rough and stalls often. It runs above idle like a dream, smooth and powerful. I changed the plugs which looked fine, I changed the fuel filter with no results. The other day I did 2 things and the...
  5. K

    2005 mercury 4 stroke efi 30hp alarm

    hello, I have the above motor. After 5 minutes of driving at full speed the motor alarms. A steady alarm. after slowing to idle it goes away after a minute. I changed the water pump impeller and the thermostat but it still does it. any ideas?
  6. K

    2005 mercury 15 hp puzzler?

    I have a 2005 15 hp 4 stroke. The choke cable wouldnt pull out so i took off the cowl and found that the plastic outer sheath on it had somehow melted or fused to the cable inside. Thought it was a fluke so installed a new one and 5 minutes later the 2 became one again! Is it some electric...
  7. K

    2005 30 Hp Starting Problem

    Hello, Here Goes, I Have A 30 Hp 2005 4 Stroke Merc. It Runs Fine But When You First Turn The Key The Starter Engages But Wont Spin The Motor As If The Battery Is Dead. After The First Try Or Two It Turns Over Good And Runs Fine. I Put A New 1000 Amp Battery So Its Not It. I Also Replaced The...
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