2004 YAMAHA YFM50S service

8-45
4. Tighten the lower locknut.
5. While applying the front brake, turn out the
upper adjusting bolt until the upper and
lower cable lengths are equal. The cable
joint will become vertical.
6. Tighten the upper locknut.
w
Operating 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.
q
a
a=a’
a’
1. Cable joint1. Raccord de câble1. Conexión del cable
5YF-9-60 8 4/24/03 6:35 PM Page 8-45

8-49
w
Operating 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.
8Replacement of brake components
requires professional knowledge. These
procedures should be performed by a
Yamaha dealer.
5YF-9-60 8 4/24/03 6:35 PM Page 8-49

8-67
EBU00413
Troubleshooting
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.
5YF-9-60 8 4/24/03 6:35 PM Page 8-67

10-2
10
MODEL YFM50
Engine oil:
Type
Recommended engine oil classification: API Service SE, SF, SG type or higher
Quantity:
Periodic oil change 0.80 L
cC
In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD” or oils of a
higher quality than specified. In addition, do
not use oils labeled “ENERGY CONSERVING
II” or higher.
–20° 10° 20° 30° 40°
10W30
10W40
20W40
20W5050°C
0° –10°
5W30
15W40
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10-7
Modèle YFM50
Huile moteur
Type
Classification d’huile de moteur recommandée:
Quantité
Vidange périodique
Huiles de type API Service, de classe SE, SF, SG min.
fF
Ne pas mélanger d’additif chimique à l’huile
afin d’éviter tout patinage de l’embrayage, car
l’huile de moteur lubrifie également l’embraya-
ge. Ne pas utiliser d’huile de grade diesel “CD”
ou une huile de grade supérieur à celui spécifié.
S’assurer également de ne pas utiliser une huile
portant la désignation “ENERGY CONSER-
VING
II” ou la même désignation avec un
numéro plus élevé.
0,80 l
–20° 10° 20° 30° 40°
10W30
10W40
20W40
20W5050°C
0° –10°
5W30
15W40
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