Draining The Fuel; Disassembling The Vapor Separator - Yamaha F50F Service Manual

WARNING
• Before measuring the fuel pressure,
make sure that the drain screw is tight-
ened securely.
• Do not loosen the drain screw while
measuring the fuel pressure. Loosening
the drain screw can cause fuel to spray
out creating a fire hazard.
• After measuring the fuel pressure, cover
the end of the hose with a clean, dry rag,
point the hose downward, and then
loosen the drain screw to drain the
remaining fuel from the hose and gauge.
• When storing the fuel pressure gauge,
make sure that the drain screw is tight-
ened securely.

Draining the fuel

1. Remove the cap 1.
2. Cover the valve a of the vapor separator
with a rag, and then press in the valve a
using a thin screwdriver to release the
fuel pressure.
WARNING
Always reduce the fuel pressure in the
high-pressure fuel line before servicing
the line or the vapor separator. If the fuel
pressure is not released, pressurized fuel
may spray out.
3. Place a container under the vapor sepa-
rator drain hose, and then loosen the
drain screw 2.
6C13G11
1
a
S6C14180
4. Drain the fuel from the vapor separator
drain hose by pressing the valve using a
thin screwdriver.

Disassembling the vapor separator

1. Remove the cap 1.
2. Cover the valve a of the vapor separator
with a rag, and then press in the valve a
using a thin screwdriver to release the
fuel pressure.
3. Remove the float chamber.
4. Remove the float pin and float.
NOTE:
Remove the float pin in the direction of the
arrow b shown.
Vapor separator
2
2
S6C14190
1
a
S6C14180
b
S6C14220
4-18
1
2
3
4
5
6
7
8
9