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  1. #1
    Member
    Join Date
    Nov 2006
    Location
    Sterling
    Posts
    4

    225 EFI Bad Starter Solenoid?

    I have had 2 seperate times where my 2000 Mercury 225 EFI will not start. The cranking battery is less than 2 months old, so I believer there is plenty of power. There is no click, no struggle to start, no nothing, just the single beep of the horn when I first turn the key.

    After fiddling for awhile, I came across a 20 amp fuse in a tall plastic assembly on the right side of the engine. Thinking I had found the culprit, I pulled the fuse only to find it was perfectly good. But when I put it back in, the motor turns over just like nothing was ever wrong. Both times the motor turns over immediately after pulling and replacing the fuse.

    When I look at a parts diagram, that assembly seems to be for the starter solenoid. Not knowing a solenoid from a widget, I'm looking for other opinions to see if my logic makes sense? Any other suspects?

    Thanks for any and all assistance/opinions.


    JD

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    98,150
    #2
    JD:

    The starter solenoid is located on the electrical plate (Starboard Side of the engine).

    Check CONNECTIONS to the solenoid (clean/tight).

    Verify that the GROUND wire for the solenoid is secured properly at it's ground connection.

    There are other possibilities (neutral safety switch, cannon plug connector, etc)... but the above is a good starting point.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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  3. Member
    Join Date
    Nov 2006
    Location
    Sterling
    Posts
    4
    #3
    Thanks Don. I will take a closer look at all the things you mentioned.


    JD