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Old 14 September 2008, 17:31   #1
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yamaha 90hp outboard problems

hi
can anyone help not sure if this is the right section of the site to ask but i have a 90hp yamaha auto lube outboard when we take the boat out we can be at full throttle for about a minute then this buzzer sounds in the throttle leaver box and the engine wont rev up and the outbard viabrates then after about 3 minutes the buzzer stops and the engine will rev up fine and the same thing happens again does anyone know what this buzzer is and why it cuts the revs out.
gary
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Old 14 September 2008, 21:30   #2
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Originally Posted by case1 View Post
hi
can anyone help not sure if this is the right section of the site to ask but i have a 90hp yamaha auto lube outboard when we take the boat out we can be at full throttle for about a minute then this buzzer sounds in the throttle leaver box and the engine wont rev up and the outbard viabrates then after about 3 minutes the buzzer stops and the engine will rev up fine and the same thing happens again does anyone know what this buzzer is and why it cuts the revs out.
gary

It's either an overheat alarm or you're low on 2 stroke oil. If it's continuous it's an overheat alarm. The lack of revs and vibration is the rev limiter cutting in to stop the engine being damaged.
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