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What to do before starting auxiliary engine?
If the boat has a blower for the engine compartment, TURN IT ON for several seconds before starting the engine(s), to clear out any fuel fumes that might have accumulated.
You should let the ventilation system run about four minutes before starting the engine on a boat.
It depends on the size of vessel and type of engine.
It depends on the size of vessel and type of engine.
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Yes, if you drained it out before starting it should be ok.
The light should be on before starting, and for 3 seconds after starting, as a bulb check.
A good practice is to let your engine idle for a few minutes after starting so the oil pressure can build and lube all the internal parts of the engine. A vehicle with turbo should be idled before shutting off to let the turbo cool down.