Fuel Feed System - TOHATSU MFS 25D Service Manual

(3) Fuel Feed System

Fuel pump 4 (low pressure mechanical type) draws fuel from fuel tank, and feeds it to fuel feed pump 6 (FFP)
located in the vapor separator 5 through fuel connector 2 and fuel filter 3.
Highly pressurized fuel, fed into fuel rail 8 and fuel injector, and then, injected into intake manifold.
Excessive fuel that is not used by fuel injector passes through fuel regulator 7, and circulated in the vapor separator
5 to keep fuel pressure constant.
Stabilization of fuel pressure is performed by the fuel regulator built into the vapor separator.
Fuel
Fuel Tank
Vapor separator
Fuel Regulator
4st 25/30 2022
Air/Vapor
Fuel Connector
Fuel Feed Pump (FFP)
Fuel Cooler
Vapor Catch Tank
Fuel Filter
Fuel Rail
Fuel Injector
Vent hose nipple
Fuel Pump
Intake Manifold
Release
4-27
4