Reducing The Fuel Pressure; Disconnecting The Quick Connector; Measuring The Fuel Pressure - Yamaha F80BETL Service Manual

FUEL

Reducing the fuel pressure

1. Remove the cap 1.
2. Cover the pressure check valve a of the
vapor separator with a rag, and then
press in the pressure check valve a
using a thin screwdriver to release the
fuel pressure.
1
a
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.

Disconnecting the quick connector

1. Wrap the quick connector with a cloth,
and then rotate the quick connector tab
1 to the stopper position a.
1
WARNING
If the quick connector is removed sud-
denly, pressurized fuel could spray out.
To gradually release the fuel pressure, be
sure to remove the quick connector
slowly.
4-13
Fuel system
S6D84180
a
2
S6C14240
CAUTION:
• Do not rotate the quick connector tab 1
past the stopper position a, otherwise it
could be damaged.
• When the fuel hose is disconnected,
quickly remove the retainer 2 from the
quick connector, otherwise the retainer
could be lost.
2. Disconnect the quick connector 3 from
the fuel rail 4 directly.
3
WARNING
Always reduce the fuel pressure in the
fuel line before servicing the line or the
fuel pipe. If the fuel pressure is not
released, pressurized fuel could spray
out.

Measuring the fuel pressure

1. Disconnect the quick connector from the
fuel rail.
NOTE:
Before disconnecting the quick connector,
release the fuel pressure.
2. Connect fuel pressure gauge adapter B
1 between the quick connector and fuel
rail.
3. Connect the fuel pressure gauge 2 to
fuel pressure gauge adapter B.
4
S6C14250
6D93G11