Owner`s manual

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
knocking (or pinging) occurs, use a
gasoline of a different brand or premi-
um unleaded fuel. Use of unleaded fuel
will extend spark plug life and reduce
maintenance costs.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that contain-
ing methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10%. Gasohol
containing methanol is not recom-
mended by Yamaha because it can
cause damage to the fuel system or ve-
hicle performance problems.
EAU13550
Fuel cock
The fuel cock supplies fuel from the
tank to the carburetors while also filter-
ing it.
The fuel cock lever positions are ex-
plained as follows and shown in the il-
lustrations.
OFF
With the fuel cock lever in this position,
fuel will not flow. Always turn the fuel
cock lever to this position when the en-
gine is not running.
ON
With the fuel cock lever in this position,
fuel flows to the carburetors. Turn the
fuel cock lever to this position when
starting the engine and riding.
RES
1. Arrow mark positioned over “OFF”
1. Arrow mark positioned over “ON”
1. Arrow mark positioned over “RES”
5FB13.book Page 7 Monday, May 12, 2003 5:20 PM