Boat Maintenance: yamaha 150 4 stroke

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Either the Idle Service Valve (ISV) is failing, or a complete fuel system service needs to be done. Has it been tuned up lately? Plugs changed? Etc.

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yamaha 150 4 stroke - lucky67 - 7/6/2019 6:38:21 PM

yamaha 150 4 stroke - lucky67 - 7/16/2019 10:20:39 AM

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