Instrument and control functions
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knocking (or pinging) occurs, use a
gasoline of a different brand. Use of un-
leaded 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% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
EAU74211
Fuel tank breather hose and
overflow hose
The breather hose prevents a vacuum
condition from forming within the fuel
tank.
The overflow hose drains excess gaso-
line and directs it safely away from the
vehicle.
Before operating the motorcycle:
check each hose connection.
check each hose for damage.
confirm the end of each hose is not
blocked.
confirm each hose is properly rout-
ed through its clamp(s).
For U49 models
For California
1. Clamp
2. Fuel tank breather hose
3. Fuel tank overflow hose
1. Clamp
2. Fuel tank overflow hose
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2
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BFT-9-10.book 19 ページ ２０２０年７月２８日 火曜日 午後４時１７分
