Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 290Get this manual

Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 290

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COOLING

4 PSI (27.4 61.6 kPa) between 1000 2200 RPM

Pressure is below minimum spec- 12 PSI (54.9 68.5kPa) ification W.O.T
Pressure higher than normal W.O.T but engine s