Mercury Optimax User Manual

OUTBOARD INSTALLATION
111
Oil Injection Set‑Up
FILLING OIL INJECTION SYSTEM
1. Fill the oil tank with the specified oil. Refer to Filling Oil
Injection System. Add only enough oil to bring the oil level
up to the bottom of the fill neck.
29465
All Models Capacity Fluid Type
Oil tank 4.72 liters (5 qt.) Optimax/DFI 2‑Cycle Engine Oil
PRIMING THE OIL INJECTION PUMP
Before starting engine for the first time, prime the oil injection
pump. Priming will remove any air that may be in the pump, oil
supply hose, or internal passages.
a
b
7912
a - Oil injection pump b - Oil supply hose
IMPORTANT: Fill the engine fuel system with fuel before priming
the oil injection pump. Otherwise, the fuel pump will run without
fuel during the priming process and may be damaged.

Mercury Optimax Specifications

General

Starting	Electric
Engine Type	2-Stroke
Fuel System	Direct Fuel Injection (DFI)
Displacement	Varies by model (e.g., 1.5L, 1.7L, 2.5L, 3.0L)
Shaft Length	20", 25"
Fuel Tank Capacity	External
Cylinders	Varies by model (e.g., 3, 4, 6 cylinders)