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Question
I have a 1979 55 johnson 55etl79l that started to make a buzzing noise from the throttle control. everything else seems to work ok but the noise is a concern it. it is like a tem alarm but the motor wasnt getting hot
Brad you need to have the hot horn, and wiring checked out. If the horn does not sound with the key on and the motor off the wiring is OK. If it sounds when the motor is running either the sender is bad or the motor is overheating. Having water, even cool water from the tell-tale does not guarantee the engine isn't overheating. You could have a stuck thermostat.
If you run the motor with a stuck thermostat you can destroy the motor in short order.
Jeff
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Jeff Grigg
Expertise
Can help with most any question related to outboards, high performance, hull repair, rigging, if it floats and uses a motor. From a 9.9 on a aluminum boat to DFI two strokes. Outboard motors are my specialty. I can help with some I/O questions as well. Ratings are the only way we know if we are helping. If you are pleased with the help, please rate us. 20% don't bother reading my answers! If you are not going to read the follow up then why ask? Keep in mind we do this at no charge and are not paid. We do it to help you!
Experience
32 years in the marine business. Own a service facility, in coastal South Carolina certified Master Tech by Johnson/Evinrude, certified Mercury/Force, Tohatsu/Nissan. Former technical director for DMI Pistons. 30 year racing career including 3 APBA Formula V National Championships
Organizations
AMTECH, APBA
Publications Written For
Boat & Motor Dealer, Car Classics, Custom Vans (tech articles), Miami News, powerboat racing column
Awards and Honors
Certified Master Technician Johnson/Evinrude
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