Page 344 of 432
8-85
EBU00303
Valve clearance adjustment
The correct valve clearance changes with use, re-
sulting in improper fuel/air supply or engine noise.
To prevent this, the valve clearance must be ad-
justed regularly. This adjustment however, should
be left to a professional Yamaha service techni-
cian.
U5GH62.book Page 85 Monday, August 6, 2001 9:09 AM
Page 354 of 432
8-95
EBU00820*
Brake fluid replacement
1. Complete fluid replacement should be done
only by trained Yamaha service personnel.
2. Have a Yamaha dealer replace the following
components during periodic maintenance or
when they are damaged or leaking.
Replace all rubber seals every two years.
Replace all hoses every four years.
U5GH62.book Page 95 Monday, August 6, 2001 9:09 AM
Page 356 of 432
8-97 a. Free play
a. Jeu
a. Juego libre
EBU00681
Front brake adjustment
The front brake lever should have a free play of
zero mm at the lever end. If not, ask a Yamaha
dealer to adjust it.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:
Make sure the brakes operate smoothly
and that the free play is correct.
Make sure the brakes do not drag.
Make sure the brakes are not spongy. All
air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
U5GH62.book Page 97 Monday, August 6, 2001 9:09 AM
Page 360 of 432
8-101
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability
which could lead to an accident.
After servicing:
Make sure the brakes operate smoothly
and that the free play is correct.
Make sure the brakes do not drag.
All air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
U5GH62.book Page 101 Monday, August 6, 2001 9:09 AM
Page 392 of 432

8-133
EBU00413
Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory, trouble
may occur during operation.
Any problem in the fuel, compression, or ignition
systems can cause poor starting and loss of pow-
er. The troubleshooting chart describes a quick,
easy procedure for making checks. If your ma-
chine requires any repair, take it to a Yamaha
dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to prop-
erly service your machine. Use only genuine
Yamaha parts on your machine. Imitation parts
may look like Yamaha parts, but they are often in-
ferior. Consequently, they have a shorter service
life and can lead to expensive repair bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe in-
jury or property damage. Make sure there are
no open flames or sparks in the area, including
pilot lights from water heaters or furnaces.
U5GH62.book Page 133 Monday, August 6, 2001 9:09 AM
Page 411 of 432
10-2
10
Engine oil:
Type
Recommended engine oil classification: API Service SE, SF, SG type or higher
Quantity:
Periodic oil change
With oil filter replacement
Total amount2.3 L
2.4 L
2.6 L Model YFM4FAP
-20˚-10˚0˚
10˚20˚30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
CAUTION:
Be sure to use motor oils that do not contain anti-
friction modifiers. Passenger car motor oils (often
labeled “ENERGY CONSERVING II”) contain anti-
friction additives which will cause clutch and/or
starter clutch slippage, resulting in reduced com-
ponent life and poor engine performance.
U5GH62.book Page 2 Monday, August 6, 2001 9:09 AM
Page 417 of 432
10-8
Système de démarrageÉlectrique et à réenroulement
Système de graissage Carter humide
Huile de moteur:
Type
Classification d’huile de moteur recommandée: API Service de type SE, SF, SG ou supérieur Modèle YFM4FAP
-20˚-10˚0˚
10˚20˚30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
ATTENTION:
Veiller à ce que l’huile de moteur utilisée ne contienne pas
d’additifs antifriction. Les huiles pour automobiles (portant
souvent la désignation “ENERGY CONSERVING II”)
contiennent des additifs antifriction. Ceux-ci feront patiner
l’embrayage et/ou l’embrayage de démarreur, ce qui provo-
quera une réduction de la durabilité des organes et du ren-
dement.
U5GH62.book Page 8 Monday, August 6, 2001 9:09 AM