EasyManuals Logo

TOHATSU MFS 25d Service Manual

TOHATSU MFS 25d
413 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #130 background imageLoading...
Page #130 background image
Fuel System (Fuel Injection)
4-28
4st 25/30 2022
㻲㻸㻷
Excessive fuel
Normal fuel
a
b
OUT
IN
6. Components of Fuel Feed System
1) Fuel Pump [Low Pressure Mechanical Pump]
The fuel pump is a diaphragm pump that is operated mechanically by the camshaft.
a IN: Fuel from Filter/Tank
b OUT: Fuel Outlet to Vapor Separator
2) Vapor Separator
Vapor separator feeds only liquid fuel for internal fuel feed pump (FFP) 1 (electrical high pressure pump). Fuel that
is fed from fuel pump (low pressure mechanical pump) is sent to upper part of vapor separator, where it is controlled
with needle valve 2/float 3 assy. Removes trash and fuel filter (suction side) 4 Fuel filter (discharge side) 5 when
passing through the Fuel Feed Pump (FFP). High pressure fuel from fuel feed pump (FFP) is fed to fuel rail and
fuel injector. Excessive fuel is returned to the chamber by a fuel regulator 6 that is built into the vapor separator. In
addition, a fuel cooler is mounted in the vapor separator to suppress an increase in the fuel temperature.
1 Fuel Feed Pump (FFP)
2 Needle Valve
3 Float
4 Fuel Filter (suction side)
5 Fuel Filter (discharge side)
6 Fuel Regulator

Table of Contents

Other manuals for TOHATSU MFS 25d

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the TOHATSU MFS 25d and is the answer not in the manual?

TOHATSU MFS 25d Specifications

General IconGeneral
BrandTOHATSU
ModelMFS 25d
CategoryOutboard Motor
LanguageEnglish

Related product manuals