Fuel Tank Breather Hose And Overflow Hose; Catalytic Converter - Yamaha YZF-R3 Owner's Manual

brand or premium 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 con-
taining 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.
Instrument and control functions
Fuel tank breather hose and
overflow hose
2
1
1. Fuel tank overflow hose
2. Fuel tank breather hose
Before operating the motorcycle:
 Check each hose connection.
 Check each hose for cracks or
damage, and replace if necessary.
 Make sure that the end of each
hose is not blocked, and clean if
necessary.
 Make sure that the end of fuel tank
breather hose is positioned out-
side of the cowling.
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EAUN0790

Catalytic converter

This model is equipped with a catalytic
converter in the exhaust system.
WARNING
The exhaust system is hot after op-
eration. To prevent a fire hazard or
burns:
 Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
 Park the vehicle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
 Make sure that the exhaust sys-
tem has cooled down before
doing any maintenance work.
 Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
EAU13434
EWA10863
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