Disconnecting The Quick Connector; Measuring The Fuel Pressure - Yamaha F50F Service Manual

Disconnecting the quick connector

1. Wrap the quick connector with a rag, and
then rotate the quick connector tab 1 to
the stopper position a.
a
1
2
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.
CAUTION:
• Do not rotate the quick connector tab 1
past the stopper position a, otherwise it
could be damaged.
• When the fuel hoses are disconnected,
quickly remove the retainer 2 from the
quick connector, otherwise the retainer
can be lost.
2. Disconnect the quick connector 3 from
the fuel rail 4 directly.
3
6C13G11
S6C14240
4
S6C14250
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 the special service tools as
shown.
2
WARNING
• When connecting the fuel pressure
gauge, first cover
between the gauge and adapter with a
clean, dry rag to prevent fuel from leak-
ing out.
• Gently screw in the gauge until it is
firmly connected.
Fuel pressure gauge 1:
90890-06786
Fuel pressure gauge adapter B 2:
90890-06942
Vapor separator
1
2
3
4
5
1
6
S6C14260
the connection
7
8
9
4-16