Recent content by Tom Scully

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    91 150 hp Spark on only one cylinder

    Tried the Force section but thought I would try here since it is a Merc. ignition. The engine is a 91 Force 150, inline 5 cyl. and has the Thunderbolt ignition. The top cylinder is the only one getting spark, and it's alot of strong blue, snapping arcs jumping a 7/16" gap. It seems like this...
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    91 Force 150 Spark on one cylinder.

    The engine has the Thunderbolt ignition. The top cylinder is the only one getting spark, and it's alot of strong blue, snapping arcs jumping a 7/16" gap. It seems like this cylinder is getting the spark meant for the other cylinders. I measured the resistance of the triggers and they are all...
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    Opinions on a 1979 55hp?

    I have a chance to pick up an Evinrude #55975C.<br />It has not run in a while and I know what's involved with bringing it back to life, just wanted to know what the "track record" of these motors is.<br />Thanks,<br />Tom.
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    Lifting a 120 hp

    There is no lifting ring on the engine.<br />What would be the best place to lift it from?<br />I am a leary about lifting from the flywheel.
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    Upgrading 1983 115 HP to 1989 120HP

    I am replacing a blown 1983 115hp, model# E115TLCTE, with a 1989 120hp, model# E120TXCEM.<br />My questions are:<br />1) Does anyone have an educated opinon on the reliability and service history of the 120hp?<br />2) Will the controls for the 83 115hp work with the 89 120hp?<br />Thanks,<br />Tom.
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    Won't Idle

    1984 Yamaha 40ELN.<br />The engine will not idle.<br />Spark OK.<br />Fuel OK.<br />Compression is 60-65 lbs. on all three cylinders.<br /><br />When run at fast idle the motor intermittently "squeaks" or "chirps" accompanied by a reduction in RPM. Also there is a puff of smoke that comes from...
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    CDI pack 1984 Yamaha 40HP

    Does anyone know of a source for a used or aftermarket CDI pack? <br />Yamaha part # 6H4-85540-21-00<br />Thanks!
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    1983 Evinrude 115, No Spark.

    All of a sudden during a test run in the driveway to check for overheating, the engine abruptly quit running after turning it off and restarting it several times.<br />I checked and found no spark at any of the cylinders.<br />The main fuse, power packs and stator check out OK.<br />My question...
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