Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 207Get this manual
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OIL INJECTION
a#1 Cylinder Check ValveHose Assembly#3 Cylinder Check ValveHose Assembly#5 Cylinder Check ValveHose Assembly 19 Reinstall starter motorTorque bolts to 17.5 lb ft(23.5 Nm)20 Reinst