I always run the blower and sniff the output for fumes.
The most likely engine-related thing to torpedo my boat would be
an explosion/fire from gas fumes. It hasn't happened for quite a
while but I've been through periods of having the needle valve
in the carb. stick in the open position and would wake up in
the night with fumes in the cabin. Perhaps the switch to ethanol
has caused this to no longer happen.
-jonathan
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