2001 YAMAHA YFM600FWA service

8-49
EBU00303
Valve clearance adjustment
The correct valve clearance changes with use,
resulting in improper fuel/air supply or engine
noise. To prevent this, the valve clearance
must be adjusted regularly. This adjustment
however, should be left to a professional
Yamaha service technician.
EBU00307
Throttle lever adjustment
NOTE:
Adjust the engine idling speed before adjust-
ing the throttle lever free play.
1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle le-
ver free play is 3 ~ 5 mm.
3. Tighten the locknut.
1. Locknut 2. Adjusting bolt a. Free play
1. Contre-écrou 2. Boulon de réglage a. Jeu
1. Contratuerca 2. Perno de ajuste a. Juego libre

8-57
EBU00752*
Brake fluid replacement
1. Complete fluid replacement should be
done only by trained Yamaha service per-
sonnel.
2. Have a Yamaha dealer replace the follow-
ing components during periodic mainte-
nance or when they are damaged or
leaking.
●Replace all rubber seals every two years.
●Replace all hoses every four years.

8-61
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.

8-67
3. Turn the brake lever cable adjusting nut
so that gap a is 0 ~ 1 mm.
4. Turn the adjusting bolt at the brake lever
so that brake lever free play is 5 ~ 7 mm.
5. Tighten the locknut at the rear brake lever.
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.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
1. Brake lever cable adjusting nut a. 0 ~ 1 mm
1. Écrou de réglage du câble de levier de frein
1. Tuerca de ajuste del cable de la palanca del freno
1. Locknut 2. Adjusting bolt
a. Free play 5 ~ 7 mm
1. Contre-écrou 2. Boulon de réglage
a. Jeu: 5 à 7 mm
1. Contratuerca 2. Perno de ajuste
a. Juego libre 5 ~ 7 mm

8-83
EBU00398
Headlight
If the headlight beam adjustment or headlight
bulb replacement is necessary, have a Yamaha
dealer do this service.

8-85
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 igni-
tion systems can cause poor starting and loss
of power. The troubleshooting chart describes
a quick, easy procedure for making checks. If
your machine requires any repair, take it to a
Yamaha dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only genu-
ine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a short-
er 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 inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.

10-2
10
10
10
10
10
10
10
10
10
10
10
Engine oil:
Type-20°-10°0°10°20°30°40°50°C
5W/30
10W/30
10W/40
20W/50
20W/40
15W/40
Recommended engine oil classification: API Service SE, SF, SG type or higher
Quantity:
Periodic oil change
With oil filter replacement
Total amount1.9 L
2.0 L
2.6 L Model YFM600FWA
CAUTION:
Be sure to use motor oils that do not contain anti-
friction modifiers. Passenger car motor oils (often
labeled “Energy Conserving”) contain anti-friction
additives which will cause clutch and/or starter
clutch slippage, resulting in reduced component
life and poor engine performance.

10-8
Huile de moteur:
Type-20°-10°0°10°20°30°40°50°C
5W/30
10W/30
10W/40
20W/50
20W/40
15W/40
Classification d’huile de moteur recommandée: API Service de type SE, SF, SG ou supérieurModèle YFM600FWA
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”) contiennent des additifs
antifriction. Ceux-ci feront patiner l’embrayage et/ou
l’embrayage de démarreur, ce qui provoquera une
réduction de la durabilité des organes et du
rendement.