octane YAMAHA TDM 900 2003 Owners Manual

3-12
INSTRUMENT AND CONTROL FUNCTIONS
3
ECA00104
cC
Use only unleaded gasoline. The
use of leaded gasoline will cause
severe damage to internal engine
parts, such as the valves and pis-
ton rings, as well as to the exhaust
system.
Your Yamaha engine has been
designed to use regular unleaded
gasoline with a research octane num-
ber of 91 or higher. If knocking (or
pinging) occurs, use a gasoline of a
different brand or premium unleaded
fuel. Use of unleaded fuel will extend
spark plug life and reduce mainte-
nance costs.EAU02955
Fuel tank breather hoseFuel tank breather hoseBefore operating the motorcycle:
8Check the fuel tank breather
hose connection.
8Check the fuel tank breather
hose for cracks or damage, and
replace it if damaged.
8Make sure that the end of the
fuel tank breather hose is not
blocked, and clean it if neces-
sary.
1. Fuel tank breather hose
EAU04960
Catalytic converterCatalytic converterThis motorcycle is equipped with a
catalytic converter in the muffler.
EW000128
w
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance
work.
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