I have a 06 T60 Yamaha 4 Stroke FI that has started Missing / Stuttering when you have the boat on throttle cruising the lake it all of a sudden just falls on its face.... idle drops starts missing with the throttle still in the same position.....you can drop the throttle back and try to speed up and it misses even worse.... no warning given it just runs perfect then all of a sudden just stalls.....I have noticed this weekend that if you shut it off and turn it right back on its perfect..smooth as silk.... might go 20-30 min or longer and same thing again....i have ran injector cleaner and sea foam with no difference....... motor runs perfect like day one from the factory until it decides to stall out........has me totally stumped.
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