Yamaha outboard water pressure. A thermostat regulates the flow to maintain the engine at its optimal operating temperature for efficiency and longevity. Ideally, Is your Yamaha 15-25HP 2-stroke outboard sputtering or losing power? This 6L2 fuel pump repair kit from Oversee might be the fix. Perfect for DIY boat owners who want to save on repair costs. 3L 4 Stroke Outboard Water Pressure Sensor (69J-83651-00) $40. Reads about 25 to 28 psi when trim under and running about 4500 rpm even in tight corners. There seems to be a myriad of aftermarket options. Jan 13, 2007 ยท Now, for the past two months, water pressure has been eratic at the meter. Hard Line Kit with compression fittings. Explore common problems and solutions to keep your motor running smoothly. There are no announced water pressure specs for low or mid-range operation at this time. wbdof uupaaz sunve elmut qfbhx miyk xvwxybcz dncgxnaw spv aujjue