Yamaha YFM80RX Owner's Manual page 29

The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.
OFF
1
OFF
1. Arrow mark positioned over "OFF"
With the fuel cock lever in this position, fuel will not
flow. Always turn the fuel cock lever to this position
when the engine is not running.
RES
FUEL
ON
ON
OFF
1
1. Arrow mark positioned over "ON"
With the fuel cock lever in this position, fuel flows
to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.
4-9
RES
FUEL
ON
ON
1
2
3
4
5
6
7
8
9
10
11