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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a 1987 115 Mariner in line six. It idles perfect for

Customer Question

I have a 1987 115 Mariner in line six. It idles perfect for a few minutes. Then it idles up high and stays there for a few seconds and then dies back down to normal idle. What's my problem?
Submitted: 2 months ago.
Category: Boat
Expert:  Tan replied 2 months ago.

Hello Danny. My name is Tan.

This is a sign of fuel starvation or a lean fuel condition. Choke the engine when it starts to idle up does it slow down.Squeeze the primer bulb does it idle down.

Do these 2 tests when the engine acts up post back with findings.

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