Fuel System; Fuel Line Inspection; Water Separating Fuel Filter - Efi Models 1B-5 - Mercury 150 EFI Service Manual

Fuel System

Avoid serious injury or death from gasoline fire or explosion. Carefully follow all
fuel system service instructions. Always stop the engine and DO NOT smoke or
allow open flames or sparks in the area while servicing any part of the fuel sys-
tem.
Before servicing any part of the fuel system, stop engine and disconnect the battery. Drain
the fuel system completely. Use an approved container to collect and store fuel. Wipe up
any spillage immediately. Material used to contain spillage must be disposed of in an ap-
proved receptacle. Any fuel system service must be performed in a well ventilated area.
Inspect any completed service work for sign of fuel leakage.

Fuel Line Inspection

Visually inspect the fuel line and primer bulb for cracks, swelling, leaks, hardness, or other
signs of deterioration or damage. If any of these conditions is found, the fuel line or primer
bulb must be replaced.
IMPORTANT: Visually inspect for fuel leakage from the filter connections by
squeezing the primer bulb until firm, forcing fuel into the filter.
Water Separating Fuel Filter – EFI Models
NOTE: The warning system will turn on when water in the fuel filter reaches the full level.
1. This filter removes moisture and also debris from the fuel. If the filter becomes filled
with water, the water can be removed. If the filter becomes plugged with debris, the
filter must be replaced with a new filter.
a -
Remove and replace filter as follows:
2. Turn ignition key switch to OFF position.
3. Disconnect wire at bottom of filter.
4. Remove filter by turning the filter in the direction of the arrow (clockwise). Tip the
5. Lubricate the sealing ring on the filter with oil. Thread on the filter and tighten se-
90-883728 JULY 2001
Fuel/Water Separator Filter
filter to drain fluid in a suitable container.
curely by hand. Reconnect the wire to the filter.
WARNING
a
MAINTENANCE
58800
Page 1B-5