Diagnostic
Cause: Gasoline containing alcohol (ethanol or methanol); adverse effects worsen with higher alcohol percentage or methanol use Test: Check fuel for alcohol content; verify fuel meets Mercury published requirements
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Ask Boat Guru about thisSpec · 10 % conditions={"applicableTo":"Mercury Marine engine fuel system components","note":"Boat fuel system tolerance may differ; consult boat manufacturer"}
Procedure · 1. If gasoline contains alcohol (ethanol or methanol), drain as much remaining gasoline as possible from the fuel tank, remote fuel line, and engine fuel system before storage. WARNING: Gasoline containing alcohol can...
Spec · 92 (R+M)/2 conditions={"region":"USA and Canada","fuelType":"Unleaded gasoline"}
Procedure · 1. Before starting (cold engine), tilt outboard out/up past vertical to allow trapped oil to drain back to the oil sump. Allow outboard to remain tilted for approximately one minute. WARNING: Do not overfill. Check oi...
Diagnostic · Cause: Alcohol content in gasoline absorbing moisture, causing water and alcohol to separate from gasoline in fuel tank Test: Inspect fuel system components for corrosion or deterioration; verify alcohol content does ...