Fuel Pump Pulse Hose - Removal
The fuel pump pulse hose runs between the crankcase port.
1. Remove engine side cover. See
Side Cover - Removal
.
2. Disconnect the pulse hose at the fuel pump (
A
, Figure
34). Squeeze the tangs of the clamp and slide the clamp
along the hose away from the fuel pump. Using the fuel
line removal tool, remove the pulse hose from the fuel
pump port.
34
3. Disconnect the pulse hose at the crankcase port (
A
,
Figure 35). Squeeze the tangs of the clamp and slide
the clamp along the hose away from the crankcase port.
Using the fuel line removal tool, remove the pulse hose
from the port.
35
4. Feed the disconnected pulse hose underneath the fuel
tank and toward the fuel pump until free from the engine.
Inspect hose and replace as necessary.
Fuel Pump Pulse Hose - Installation
1. Feed the pulse hose underneath the fuel pump bracket
and the fuel tank from the fuel pump side of the engine.
2. Connect end of the pulse hose to the crankcase port (
A
,
Figure 35). Press the hose onto the port until the hose
end contacts the port base.
3. Squeeze the tangs of the hose clamp and slide along the
hose until the clamp is positioned above the crankcase
port and
1/8 inch
(3mm) from the end of the hose.
4. Connect the end of the pulse hose to the fuel pump (
A
,
Figure 34). Press the hose onto the fuel pump port until
the hose end contacts the base of the port.
5. Squeeze the tangs of the hose clamp and slide along the
hose until the clamp is positioned above the fuel pump
port and
1/8 inch
(3mm) from the end of the hose.
6. Install the engine side cover. See
Side Cover -
Installation
.
Fuel Vent Hose - Removal
Depending on your engine's trim, a fuel vent hose may be
installed. The vent hose connects between the port on the
ETC and the remote fuel tank. Engine's NOT equipped with a
fuel vent hose will have the ETC port capped.
1. Remove front cover panel. See
Front Cover Panel -
Removal
.
2. Depending on your engine's trim, it may be necessary to
remove the air cleaner assembly to access the fuel vent
hose. See
Air Cleaner Assembly - Removal
.
3. Disconnect the fuel vent hose from the ETC port (
A
,
Figure 36). Using the fuel line removal tool, pull up on the
hose to remove from the port.
36
4. Disconnect the fuel vent hose from the remote fuel tank.
See your equipment manual for the proper removal
procedure.
5. Starting at the ETC port, feed the vent hose underneath
the cylinder air guide and across the top of the blower
housing.
86
Not for
Reproduction
Summary of Contents for 25E300
Page 1: ...Vanguard EFI Diagnostics and Repair 25E300 REPAIR MANUAL N o t f o r R e p r o d u c t i o n...
Page 18: ...Model 25E300 EFI Component Locations 19 N o t f o r R e p r o d u c t i o n...
Page 26: ...Speed vs Voltage Table 8 27 N o t f o r R e p r o d u c t i o n...
Page 61: ...25E300 Wiring Harness Diagram 62 vanguardpower com N o t f o r R e p r o d u c t i o n...
Page 62: ...63 N o t f o r R e p r o d u c t i o n...
Page 88: ...Model 25E300 Fuel Hose Location and Routing Tankless 89 N o t f o r R e p r o d u c t i o n...
