Ok experts, I have a 2006 Yamaha 115 4 stroke that idles perfectly and runs smoothly up to 3/4 throt…

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Tom Martin asks: Ok experts, I have a 2006 Yamaha 115 4 stroke that idles perfectly and runs smoothly up to 3/4 throttle then it dies out completely when pushed beyond 3/4 throttle, Throttle position sensor replaced. Possibly high speed jet blockage? Could this be some type of vacuum problem ? It has a built in fuel tank (it’s on a pontoon boat)
Water pump works, Any help would be appreciated, Its my first 4 stroke motor, tom

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July 15, 2017

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