Mercury V8 300

Fuel System
Section 7A - Fuel System
Table of Contents
Fuel System Specifications................................................7A-2
Fuel System Overview....................................................... 7A-2
Theory of Operation....................................................7A-2
Fuel System................................................................7A-2
Fuel Injector................................................................ 7A-2
In‑line Fuel Filter......................................................... 7A-3
V6 Fuel Flow Diagram................................................ 7A-4
V8 Fuel Flow Diagram................................................ 7A-6
Fuel Supply Module (FSM)................................................ 7A-7
Fuel Supply Module (FSM) Description...................... 7A-7
Fuel Pressure Regulator.............................................7A-8
Fuel Lift Pump.............................................................7A-8
High‑Pressure Fuel Pump.......................................... 7A-9
Fuel System
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 7A-1
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