HELP!!! with 2016 Yamaha SVHO waverunner - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
 
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post #1 of 5 (permalink) Old 10-05-2019, 03:33 PM Thread Starter
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HELP!!! with 2016 Yamaha SVHO waverunner

Fueled up about 15 minutes before Waverunner died cruising about 30 MPH. Restarted and ran about 10 sec. later, restarted and ran about 5 sec. and so on for about 10 times. Towed in , and same thing the next day. No water in oil, Engine sounds great and revs up normally for the 4 sec. and then dies. Checked fuel pressure and is at 54 psi. and stable even after engine dies. Pumped out about 2 gallons in case there was water in fuel but not appear to be. Acts like running out of fuel, but have proven that's not the case. WHAT IS GOING ON WITH THIS????????? PLEASE HELP Phil
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post #2 of 5 (permalink) Old 10-06-2019, 06:20 AM
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Will it run longer than the 4 sec if you let it idle ?
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post #3 of 5 (permalink) Old 10-06-2019, 08:50 AM Thread Starter
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No it will not idle. engine dies at idle Phil
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post #4 of 5 (permalink) Old 10-06-2019, 04:25 PM
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Certainly sounds like you got a tank of water. Try adding 2 or 3 bottles of fuel line anti freeze/fuel dryer. Or methynal alcohol.

Or syphon the tank dry and get good fuel from another location.
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post #5 of 5 (permalink) Old 10-07-2019, 07:59 AM Thread Starter
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I will try that. At this point I will try anything to get it back going!!!! Thanks Phil
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