Removing The Low-Pressure Fuel Pump; Checking The Low-Pressure Fuel Pump; Checking The Primer Pump - Yamaha F225F Service Manual

Removing the low-pressure fuel
pump
Cover the fuel components using a rag to
prevent fuel from spilling out.
1. Remove the vapor gas hoses a and b
from the holder c.
a
b
c
2. Disconnect the low-pressure fuel pump
coupler a.
a
3. Remove the fuel hose d from the
holders e and f, and then disconnect
the fuel hose d.
e
f
4. Remove
5. Remove the cover j and low-pressure
6. Remove the hose l from the low-
Checking the low-pressure fuel
pump
1. Check the low-pressure fuel pump. See

Checking the primer pump

1. Connect the special service tool a to the
2. Block the fuel outlet a using a rubber
d
Low-pressure fuel pump
the holder
disconnect the fuel hoses h and i.
i
g
fuel pump k.
pressure fuel pump k and joint m.
k
l

"Checking the low-pressure fuel pump

and high-pressure fuel pump" (5-37).
primer pump inlet hose.
plug b, and then apply the specified
positive pressure. Replace the primer
pump if the specified pressure cannot be
maintained for 30 seconds or more.
g,
and then
0
h
1
2
3
4
5
j
m
6
7
8
9
10
A
6-30