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    Merc 350 Mag MPI with intermittent electrical issue

    Have had this issue happen last 3 times out and would like some recommendations on approach to find root issue. Motor starts up and runs great... ride for a while to anchor spot or other dock.... .hang out for 1 or more hours... then issue pops up... when starting starter motor turns motor...
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    Mercruiser MAG 350 with Alpha drive running hot when pushed hard

    I pulled one riser and it looks so good that I did not pull the other. See pics of riser. I did not pull the manifold. I did pull the thermostat housing.. there was scale but not sure if it was enough to cause flow restrictions and the issue I am having with full throttle overheating. Any...
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    Mercruiser MAG 350 with Alpha drive running hot when pushed hard

    I have a Mercruiser MAG 350 with Alpha drive. Engine is running well overall. Temperature will climb up to 180 if you run at full throttle for a while.... might go higher but I usually back it down before letting it. Slow it back down into the 3500+ rpm range and it will run in the normal...
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