Fuel Pump Replacement; Fuel Lines And Filter; Fuel And Storage - E-Z-GO FLEET 1999 Technician's Repair And Service Manual

FUEL SYSTEM
Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notes, Cautions and Warnings
As the pistons move down in the cylinders, a positive
pressure is formed in the crankcase which causes the
diaphragm to move in the opposite direction (away from
the engine). This action forces the inlet valve to close
and the outlet valve to open and supply fuel to the carbu­
retor float bowl.

Fuel Pump Replacement

Tool List
Socket, 7/16", 3/8" drive .............................................. 1
Ratchet, 3/8" drive ....................................................... 1
Needle nose pliers ....................................................... 1
Straight blade screwdriver ........................................... 1
Observe and identify the supply and pulse hoses.
Remove the hoses, plug the fuel lines and remove the
pump by removing the two mounting screws (1) and
removing the pump (Ref Fig. 7 on page H-6).
Installation is in the reverse order of disassembly. Be
sure to connect the pulse line to the correct location on
the pump (Ref Fig. 7 on page H-6).
Fig. 7 Fuel Pump Installation
I
I
The length of the pulse hose from the fuel
NOTE
pump is important for efficient pump operation.
._ ___ _,
If the hose is to be replaced, be sure to replace with a hose of
the same length and approved material.
Do not confuse pulse and fuel lines.
CAUTION
Attempting to operate engine with lines
reversed will result in fuel entering the crankcase and diluting
the oil and possible engine damage.

FUEL LINES AND FILTER

Tool List
Needle nose pliers ....................................................... 1
Straight blade screwdriver ........................................... 1
Page H-6
Fuel is supplied to the fuel pump and carburetor through
flexible fuel hoses. An in-line filter (1) is installed in the
hose between the fuel tank (2) and the fuel pump (3) (Ref
Fig. 8 on page H-6).
Qty. Required
A
determine fuel/vapor presence or flow is required, the
ignition system must be disabled. Remove the input
wires to the coil in order to prevent an ignition spark
that could ignite the fuel/vapor. Never permit smoking
or an open flame in an area that contains fuel/vapor.
Clean up all fuel spills immediately.
The fuel filter, tank, hoses and cap should be checked
frequently for leaks, or signs that the cap vent or filter
have become clogged. The filter should be replaced as
required. See Periodic Service Schedule in Section A.
CAUTION
towards the fuel pump .
A

FUEL AND STORAGE

Fuel should be fresh, clean unleaded 87 (minimum)
octane.
Qty. Required Methanol and other alcohol based fuels are hygroscopic
fuels which attract and retain moisture. These types of
fuels can attack the aluminum fuel pump and carburetor,
and should be avoided.
Repair and Service Manual
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Fig. 8 Fuel Lines and Filter
WARNING.A.
The filter is marked with a flow direction
arrow. Be sure that the arrow points
WARNING.A.
Tests that involve fuel
flow should be avoided if
at all possible. If a test to
Never attempt to repair a
damaged or leaking fuel
tank. It must be replaced.