2003 YAMAHA WR 250F coolant reservoir

1 - 1
GEN
INFODESCRIPTION
EC100000
GENERAL INFORMATION
EC110000
DESCRIPTION
1Clutch lever
2Hot starter lever
3Engine stop switch
4Trip meter
5Main switch
6Light switch
7Start switch
8Front brake lever
9Throttle grip
0Radiator cap
AFuel tank cap
BTaillight
CKickstarter crank
DFuel tank
EHeadlight
FRadiator
GCoolant drain bolt
HRear brake pedal
IValve joint
JFuel cock
KCold starter knob
LAir cleaner
MDrive chain
NShift pedal
OOil dipstick
PFront fork
NOTE:The machine you have purchased may differ slightly
from those shown in the following.
Designs and specifications are subject to change with-
out notice.
B
CDE
F
G H
1234
5
6
7
8
9
0 A
IJ
K
L
M N
O P
RENSEIGNEMENTS GENERAUX
DESCRIPTION
1Levier d’embrayage
2Levier de démarreur à chaud
3Coupe-circuit du moteur
4Compteur de vitesse
5Commutateur principal
6Interrupteur lumiêres
7Commutateur de démarrage
8Levier de frein avant
9Poignée des gaz
0Bouchon de radiateur
ABouchon de réservoir de carburant
BLampe arrière
CPedale de kick
DRéservoir de carburant
EPhare
FRadiateur
GBoulon de vidange du liquide de refroidissement
HPédale de frein arrière
IClapet de durit de mise a liair
JRobinet de carburant
KBouton de démarrage à froid
LFiltre à air
MChaîne de transmission
NPédale de sélecteur
OJauge de niveau d’huile
PFourche avant
N.B.:
Votre machine diffère peut-être partiellement de celle mon-
trée sur ces photos.
La conception et les caractéristiques peuvent êtres changées
sans préavis.
DESCRIPTION

MAINTENANCE SPECIFICATIONS
2 - 16
SPEC
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race. Headlight body and headlight unit M6 × 1.0 2 7 0.7 5.1
Headlight (left and right) M6 × 1.0 2 10 1.0 7.2
Headlight (lower) M6 × 1.0 1 7 0.7 5.1
Taillight M6 × 1.0 3 4 0.4 2.9
Taillight lead clamp and rear fender M4 × 1.59 2 0.5 0.05 0.36
Coolant reservoir M6 × 1.0 2 7 0.7 5.1
Sidestand bracket and frame M10 × 1.25 2 66 6.6 48
Sidestand M10 × 1.25 1 64 6.4 46 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb

SPEC
2 - 97
CABLE ROUTING DIAGRAM
EC240000
CABLE ROUTING DIAGRAM
1Fuel tank breather hose
2Oil tank breather hose
3Clamp
4Diode
5Wire harness
6Hot starter cable
7Throttle position sensor lead
8Neutral switch lead
9Oil hose
0Hose guideAAC magneto lead
BCylinder head breather hose
CStarter motor lead
DClutch cable
ERadiator hose 1
FRadiator pipe (radiator hose 4)
GCable guide
HNegative battery lead
ILight switch lead
JBrake hoseKCarburetor breather hose
LCarburetor overflow hose
MCoolant reservoir breather hose
ÈInsert the fuel tank breather hose into
the hole in the steering stem cap.
ÉPass the oil tank breather hose on the
outside of the AC magneto lead, neu-
tral switch lead, light switch lead, wire
harness, starter motor lead, negative
battery lead and cylinder head breather
hose.

SPEC
2 - 99
CABLE ROUTING DIAGRAM
ÊFasten the diode and rectifier/regulator lead, with the diode at
its white tape and the rectifier/regulator lead at its protecting
tube.
ËFasten the wire harness, starter motor lead and negative bat-
tery lead so that the plastic locking tie ends do not contact the
ignition coil lead.
ÌFasten the wire harness, rectifier/regulator lead, coolant reser-
voir hose, hot starter cable, negative battery lead and starter
motor lead.
ÍFasten the wire harness, negative battery lead, starter motor
lead, rectifier/regulator lead and coolant reservoir hose at the
white tape for the negative battery lead.
ÎFasten the wire harness at its white tape.ÏFasten the wire harness, throttle position sensor lead (in the
wire harness), starter motor lead and negative battery lead.
ÐMake sure that the throttle position sensor coupler does not go
outside the chassis.
ÑFasten the throttle position sensor lead.
ÒPass the carburetor breather hoses, carburetor overflow hose
and coolant reservoir breather hose between the connecting
rod and cross tube (frame).
ÓFasten the neutral switch lead and oil hose together with the
plastic locking ties and cut off the tie ends.
ÔPass the cylinder head breather hose through the hose guide.
ÕFasten the neutral switch lead.

SPEC
2 - 101
CABLE ROUTING DIAGRAM
ÖFasten the neutral switch lead and AC magneto lead.
×Pass the cylinder head breather hose on the inside of the radi-
ator hose 1 and on the outside of the radiator pipe (radiator
hose 4). Make sure that the cylinder head breather hose does
not go forward of the chassis.
ØPass the starter motor lead in front of the radiator hose 4.
ÙPass the clutch cable through the cable guide.
ÚPass the wire harness on the outside of the neutral switch lead
and AC magneto lead.
ÛFit the brake hose into the guides on the protector.
ÜPass the wire harness, clutch cable and light switch lead
through the cable guide.ÝFasten the AC magneto lead, neutral switch lead and light
switch lead to the cable guide at their protecting tube with a
plastic locking tie and cut off the tie end.
ÞPass the carburetor breather hoses, carburetor overflow hose
and coolant reservoir breather hose so that the hoses do not
contact the rear shock absorber.

SPEC
2 - 103
CABLE ROUTING DIAGRAM
1Hot starter cable
2Cable guide
3Throttle cable (return)
4Throttle cable (pull)
5Ignition coil
6Coolant reservoir breather hose
7Rectifier/regulator
8Coolant reservoir hose
9Rectifier/regulator lead
0Clamp
ACDI unit lead
BCDI unit
CCDI unit bandDCDI unit stay
ERectifier/regulator bracket
ÈPass the throttle cables and hot starter cable through the cable
guides.
ÉPass the throttle cables and hot starter cable between the radi-
ator and frame, then under the radiator mounting boss.
ÊPass the throttle cables on the outside of the ignition coil.
ËPass the carburetor breather hose (of the throttle cable cover)
through the hose holder.

SPEC
2 - 105
ÌFasten the coolant reservoir breather hose and carburetor
breather hoses together.
ÍFasten the CDI unit lead.
ÎInsert the CDI unit band over the CDI unit stay as far as possi-
ble.
ÏFasten the rectifier/regulator lead to the rectifier/regulator
bracket with a plastic locking tie and cut off the tie end.
CABLE ROUTING DIAGRAM

SPEC
2 - 109
CABLE ROUTING DIAGRAM
1Starter motor lead
2Negative battery lead
3Wire harness
4Clamp
5Taillight lead
6Coolant reservoir breather hose
7Coolant reservoir hose
8Positive battery lead
9Starting circuit cut-off relay
0BatteryÈPosition the starter motor lead, negative battery lead and wire
harness in the tank damper slit.
ÉFasten the wire harness.
ÊDo not allow the taillight lead to slacken.
ËFasten the coolant reservoir breather hose, coolant reservoir
hose and rectifier/regulator lead.
ÌFasten the coolant reservoir breather hose and coolant reser-
voir hose.
ÍPass the coolant reservoir hose on the outside of the coolant
reservoir breather hose.