Yamaha F225F, Service Manual

Page: 265 / 576

6-30
Low-pressure fuel pump
0
1
2
3
4
5
6
7
8
9
10
A
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
.
2. Disconnect the low-pressure fuel pump
coupler
a
.
3. Remove the fuel hose
d
from the
holders
e
and
f
, and then disconnect
the fuel hose
d
.
4. Remove the holder
g
, and then
disconnect the fuel hoses
h
and
i
.
5. Remove the cover
j
and low-pressure
fuel pump
k
.
6. Remove the hose
l
from the low-
pressure fuel pump
k
and joint
m
.
Checking the low-pressure fuel
pump
1. Check the low-pressure fuel pump. See
“Checking the low-pressure fuel pump
and high-pressure fuel pump” (5-37).
Checking the primer pump
1. Connect the special service tool
a
to the
primer pump inlet hose.
2. Block the fuel outlet
a
using a rubber
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.
b
c
a
a
e
d
f
i
h
g
j
k
m
l