2003 YAMAHA BREEZE service

8-43
EBU00303Valve 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.EAU00307Throttle lever adjustmentNOTE:
Adjust the engine idling speed before adjusting
the throttle lever free play.1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 3 – 5 mm.
3. Tighten the locknut.
a q
w
1. Locknut 2. Adjusting bolt a.
Free play
1. Contre-écrou 2.
Dispositif de réglage
a. Jeu
1. Contratuerca 2.
Tornillo de ajuste
a. Juego
5VJ-9-60-08 3/26/02 9:17 PM Page 8-44

6. Turn the adjusting bolt at the brake lever
until the specified free play is obtained.
7. Tighten the locknut at the brake lever.
8. Install the front cover and fender.wOperating with improperly serviced or
adjusted brakes could cause loss of braking
ability, which could lead to an accident.
After servicing:
8Make sure the brakes operate smoothly
and that the free play is correct.
8Make sure the brakes do not drag.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
a
q
w
Specified free play: 5 – 8 mm
8-53 1. Locknut 2. Adjusting nut
a. Free play
1. Contre-écrou 2. Dispositif de réglage
a. Jeu1. Contratuerca 2. Dispositivo de ajuste
a. Juego
5VJ-9-60-08 3/26/02 9:17 PM Page 8-54

8-55
EBU00326Rear brake adjustment
Brake lever free play should be 5 – 8 mm. Turn
the adjusting nut on the brake hub in direction a
to decrease play, and in direction bto increase
play.wOperating with improperly serviced or adjus-
ted brakes could cause loss of braking abi-
lity, which could lead to an accident.
After servicing:
8Make sure the brakes operate smoothly
and that the free play is correct.
8Make sure the brakes do not drag.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
a
q
b
a
a. Free playa. Jeua. Juego
1. Adjusting nut1. Dispositif de réglage1. Dispositivo de ajuste
5VJ-9-60-08 3/26/02 9:17 PM Page 8-56

EBU00805Lubricating the drive chain
The drive chain must be cleaned and lubricated
at the intervals specified in the periodic mainte-
nance and lubrication chart, otherwise it will
quickly wear out, especially when riding in dusty
or wet areas. Service the drive chain as follows.cCThe drive chain must be lubricated after
washing the ATV or riding in the rain.1. Clean the drive chain with kerosene and a
small soft brush.cCTo prevent damaging the O-rings, do not
clean the drive chain with steam cleaners,
high-pressure washers or inappropriate sol-
vents.
8-63
5VJ-9-60-08 3/26/02 9:17 PM Page 8-64

8-91
EBU00413Troubleshooting
Although Yamaha machines receive a rigid
inspection 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
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 gen-
uine 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.
5VJ-9-60-08 3/26/02 9:17 PM Page 8-92

10-2
10
Model YFA1
Engine oil/transmission oil:
Type
Recommended engine oil/transmission API Service SE, SF, SG type or higher
oil classification:
Quantity
Engine oil:
Periodic oil change 1.25 L
Total amount1.45 L
Transmission oil: 0.6 L
cCBe 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 component life and poor engine
performance.
–20° 10° 20° 30° 40°
10W30
10W40
20W40
20W5050°C
0° –10°
5W30
15W40
5VJ-9-60-09~11 3/26/02 9:18 PM Page 13

10-7
Modèle YFA1
Huile moteur/huile de boîte de vitesses
Type
Classification d’huile de moteur/de huile de boîte
de vitesses recommandée:
Quantité
Huile moteur:
Vidange périodique
Quantité totale
Huile de boîte de vitesses:
Huiles de type API Service, de classe SE, SF, SG min.fFVeiller à ce que l’huile de moteur utilisée ne
contienne pas d’additifs antifriction. Les huiles
pour voitures (portant souvant la désignation
“ENERGY CONSERVING
II”) contiennent des
additifs antifriction qui vont faire patiner
l’embrayage et/ou l’embrayage de démarreur, ce
qui va provoquer une réduction de la durabilité
des organes et une baisse de rendement.
1,25 l
1,45 l
0,6 l
–20° 10° 20° 30° 40°
10W30
10W40
20W40
20W5050°C
0° –10°
5W30
15W40
5VJ-9-60-09~11 3/26/02 9:18 PM Page 18