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My 1999 Yamaha 80TRY outboard has repeated starting problems due to plugged idle jets after sitting three weeks. Mechanic says it is due to today's gas formula (live in Calif). Have installed new gas tanks and gas is only 2 months old. Open to all suggestions how to fix.

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Try manual choke,red lever on centre carb,turn fully clockwise,fuel should not give probs after 3 motor swinging fast

Posted on Oct 22, 2013


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Posted on Jan 02, 2017

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SOURCE: 40hp 1987 yamaha outboard motor will run for 30-60

Sound like the fuel pump is not keeping up with the engine's demand. Check it out. Good luck. Hope this helps.

Posted on Apr 27, 2009

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SOURCE: 1987 225 Evinrude will not stay idling. Will start

is your idle speed high enuf? have you checked timing-i know sounds silly but

Posted on Jul 13, 2009

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SOURCE: motor kills when put into gear

u have no spark in #2 cyl check for spark with plug if its week regap it

Posted on Jul 14, 2009

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SOURCE: 6hp Johnson outboard stalls & quits

go to an auto parts store and get a can of gasoline additive called seafoam. Read the label so you know how much to add to your 6 gallon tank. This stuff works wonders on outboard motors.

Posted on Sep 16, 2009

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SOURCE: Spark plug gap 150 hp Yamaha outboard

The correct gap is .035

Posted on Oct 16, 2009

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Hi, Rolandwhitfo and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
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For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
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What kind of bike? It sounds like clogged carbs, if pilot jets are plugged from lack of service or sitting for a while then your bike could still start but will fall on its face when opening throttle due to lack of fuel, solution=clean your carbs thoroughly and flush your tank.

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Motor kills when put into gear

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