Reply To: Evinrude 25hp Big Twin Model 25018 “The Evil One”

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August 27, 2021 at 7:48 pm #245588
trex014
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    That motor shows signs of being seriously overheated at some point in its life. The whole powerhead should be the nice Evinrude blue but the head looks brown which is a result of overheating.

    Check compression and shine a light into the spark plug holes to look for any internal damage.

    Check the powerhead just behind the back screw for the recoil assembly, theres a little silver plug that has serial and model number stamped into it, if that matches the ID tag then your motor is not Frankensteined.