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I have a pontoon boat with a Yamaha 75 hp outboard. The motor…

I have a pontoon boat...
I have a pontoon boat with a Yamaha 75 hp outboard. The motor is about five years old. I've never had any problem with it. Very reliable. But twice recently, I've been out with the boat and I'll get a warning sound that's clearly indicating a problem. The prop will start to "miss" and vibrate. I'll turn the motor of and on a few times, and then it will run fine. One friend says he thinks I've got condensation in the fuel line. What could be causing this and what should I do? Is it as simple as running the boat and getting new gas into it? I've not filled up since this began happening. By the way, it's been a crazy year for us and I'm not getting to our lake often. This happened to me three weeks ago and I just got back to the lake and it happened again. The boat has set idle for three weeks both times preceeding the problem.
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Answered in 4 minutes by:
6/27/2010
Jeremy R.
Jeremy R., MarineTechnician
Category: Boat
Satisfied Customers: 9,020
Experience: Multiple factory certifications 20+ years of experience.
Verified
Welcome, if your getting a warning horn it is either low oil. no oil, or overheat, or even water in the fuel, are you getting a horn?
Jeremy R.
Jeremy R., MarineTechnician
Category: Boat
Satisfied Customers: 9,020
Experience: Multiple factory certifications 20+ years of experience.
Verified
Jeremy R. and 87 other Boat Specialists are ready to help you
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do you have a tach on the dash? i want to show you how to read it, if not then you will have no warning system only the horn
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