Yamaha F400A 2022 - Assembling the Fuel Filter; Installing the Fuel Filter

6-5
Fuel filter assembly
a. Connect the special service tool “1” to
the fuel inlet “a”.
b. Block the fuel outlet “b” using a rubber
plug “2”, and then apply the specified
positive pressure for at least 30 sec-
onds.
2. Check:
• Pump operation
Fuel is not sent to the outboard motor
even after priming the pump → Replace
the primer pump.
Assembling the fuel filter
1. Install:
• Fuel cup assembly
• Fuel filter element
•O-ring
• Fuel filter cap
Installing the fuel filter
1. Install:
• Fuel filter bracket
•Clamp
•Holder
• Fuel filter assembly
• Fuel hose
See “Hose routing” (2-60).
TIP:
Fit the rib “a” on the fuel cup “1” into the slit
“b” in the holder “2”.
2. Check:
•Fuel flow
Leak/clog → Replace the fuel filter assem-
bly.
Vacuum/pressure pump gauge
set “1”
90890-06945
Pressure/vacuum tester “1”
YB-35956-B
T
R
.
.
Fuel filter cap
5 N·m (0.5 kgf·m, 3.7 lb·ft)
b
a
1
2
New
1
a
2
b