Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 208Get this manual
OIL INJECTION
Oil Injection Hose Installation
Install the correct inside diameter and length of hose between oil pump and fittings on the engine (see chart below)Cylinders #1, #3, #5 only have BLUE stripebandFasten hoses on both ends with sta-straps
c dCyl #1 Cyl #2
Cyl #5 Cyl #3
Cyl #1 Cyl #2 Cyl #4