2007 YAMAHA WR 450F Owners Manual

SPEC
2 - 16 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Rear wheel axle and nut M20 × 1.5 1 125 12.5 90
Driven sprocket and wheel hub M8 × 1.25 6 50 5.0 36
Nipple (spoke)—72 3 0.3 2.2
Disc cover and rear brake caliper M6 × 1.0 2 10 1.0 7.2
Protector and rear brake caliper M6 × 1.0 2 7 0.7 5.1
Chain puller adjust bolt and locknut M8 × 1.25 2 19 1.9 13
Engine mounting:
Engine upper bracket and frame M10 × 1.25 4 55 5.5 40
Engine lower bracket and frame M8 × 1.25 4 34 3.4 24
Engine and engine bracket (lower) M10 × 1.25 1 53 5.3 38
Engine and engine bracket (upper) M10 × 1.25 1 55 5.5 40
Engine and frame (lower) M10 × 1.25 1 53 5.3 38
Engine guard M6 × 1.0 3 7 0.7 5.1
Regulator mounting M6 × 1.0 2 7 0.7 5.1
Pivot shaft and nut M16 × 1.5 1 85 8.5 61
Relay arm and swingarm M14 × 1.5 1 70 7.0 50
Relay arm and connecting rod M14 × 1.5 1 80 8.0 58
Connecting rod and frame M14 × 1.5 1 80 8.0 58
Rear shock absorber and frame M10 × 1.25 1 56 5.6 40
Rear shock absorber and relay arm M10 × 1.25 1 53 5.3 38
Rear frame and frame (upper) M8 × 1.25 1 38 3.8 27
Rear frame and frame (lower) M8 × 1.25 2 32 3.2 23
Swingarm and brake hose holder M5 × 0.8 4 2 0.2 1.4
Swingarm and patch M4 × 0.7 4 2 0.2 1.4
Drive chain tensioner mounting (upper) M8 × 1.25 1 16 1.6 11
Drive chain tensioner mounting (lower) M8 × 1.25 1 16 1.6 11
Chain support and swingarm M6 × 1.0 3 7 0.7 5.1
Seal guard and swingarm M5 × 0.8 4 6 0.6 4.3
Fuel tank mounting M6 × 1.0 2 9 0.9 6.5
Fuel tank and fuel cock M6 × 1.0 2 4 0.4 2.9
Fuel tank and seat set bracket M6 × 1.0 1 7 0.7 5.1
Fuel tank and fuel tank bracket M6 × 1.0 4 7 0.7 5.1
Seat mounting M8 × 1.25 2 23 2.3 17
Side cover mounting M6 × 1.0 2 7 0.7 5.1
Air scoop and fuel tank M6 × 1.0 6 7 0.7 5.1
Air scoop and radiator panel (lower) M6 × 1.0 2 6 0.6 4.3
Front fender mounting M6 × 1.0 4 7 0.7 5.1
Rear fender mounting (front) M6 × 1.0 2 7 0.7 5.1
Rear fender mounting (rear) M6 × 1.0 2 11 1.1 8.0
Multi-function display bracket mounting M6 × 1.0 2 7 0.7 5.1
Multi-function display mounting M5 × 0.8 2 4 0.4 2.9
Plate 1 and protector M5 × 0.8 2 4 0.4 2.9
Plate 2 and protector—2 0.5 0.05 0.36
MAINTENANCE SPECIFICATIONS

SPEC
2 - 17
NOTE:
- marked portion shall be checked for torque tightening after break-in or before each race. Speed sensor lead holder and under bracket M6 × 1.0 1 13 1.3 9.4
Headlight body and headlight unit—210.10.7
Headlight mounting (left and right) M6 × 1.0 2 7 0.7 5.1
Taillight mounting—310.10.7
Taillight lead clamp and rear fender—3 0.5 0.05 0.36
Catch tank (upper) M6 × 1.0 1 16 1.6 11
Catch tank (lower) M6 × 1.0 1 7 0.7 5.1
Footrest bracket and frame M10 × 1.25 4 55 5.5 40
Sidestand mounting M10 × 1.25 1 25 2.5 18 Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
MAINTENANCE SPECIFICATIONS

SPEC
2 - 18
EC212300
ELECTRICAL
Item Standard Limit
Ignition system:
Advancer type Electrical ----
C.D.I.:
Pickup coil resistance (color) 248 ~ 372 Ω at 20 °C (68 °F)
(White – Red)----
CDI unit-model/manufacturer 5TJ-E0/YAMAHA (For USA)
5TJ-F0/YAMAHA
(Except for USA)----
----
Ignition coil:
Model/manufacturer 5TA-10/DENSO ----
Minimum spark gap 6 mm (0.24 in) ----
Primary winding resistance 0.08 ~ 0.10 Ω at 20 °C (68 °F) ----
Secondary winding resistance 4.6 ~ 6.8 kΩ at 20 °C (68 °F) ----
Charging system:
System type AC magneto ----
Model (stator)/manufacturer 5TJ 40/YAMAHA ----
Normal output 14 V/120 W at 5,000 r/min ----
Charging coil resistance (color) 0.288 ~ 0.432 Ω at 20 °C (68 °F)
(White – Ground)----
Lighting coil resistance (color) 0.224 ~ 0.336 Ω at 20 °C (68 °F)
(Yellow – Ground)----
Rectifier/regulator:
Regulator type Semiconductor short circuit ----
Model/manufacture SH770AA/SHINDENGEN ----
Regulated voltage (AC) 12.5 ~ 13.5 V ----
Regulated voltage (DC) 14.0 ~ 15.0 V ----
Rectifier capacity (AC) 12 A ----
Rectifier capacity (DC) 8 A ----
Electric starting system:
Type Constant mesh ----
Starter motor:
Model/manufacturer 5UM20/YAMAHA ----
Operation voltage 12 V ----
Output 0.48 kW ----
Armature coil resistance 0.0117 ~ 0.0143 Ω at 20 °C
(68 °F)----
Brush overall length 7 mm (0.28 in) 3.5 mm
(0.14 in)
Brash quantity 2 pcs. ----
Spring force 3.92 ~ 5.88 N
(400 ~ 600 g, 14.1 ~ 21.2 oz)----
Commutator diameter 17.6 mm (0.69 in) 16.6 mm
(0.65 in)
Mica undercut (depth) 1.5 mm (0.06 in) ----
MAINTENANCE SPECIFICATIONS

SPEC
2 - 19
NOTE:
Tighten the rotor nut to 65 Nm (6.5 m  kg, 47 ft  lb), loosen and retighten the rotor nut to 65 Nm
(6.5 m  kg, 47 ft  lb). Starter relay:
Model/manufacturer 2768090-A/JIDECO ----
Amperage rating 180 A ----
Coil winding resistance 4.2 ~ 4.6 Ω at 20 °C (68 °F) ----
Starting circuit cut-off relay:
Model/manufacturer ACM33221 M06/MATSUSHITA ----
Coil winding resistance 75.69 ~ 92.51 Ω at 20 °C (68 °F) ----
Fuse (amperage × quantity):
Main fuse 10 A × 1 ----
Reserve fuse 10 A × 1 ----
Part to be tightened Thread size Q’tyTightening torque
Nm m·kg ft·lb
Stator M5 × 0.8 2 7 0.7 5.1
Holder (AC magneto lead) M5 × 0.8 2 10 1.0 7.2
Rotor M12 × 1.25 1 Refer to NOTE.
Neutral switch M5 × 0.8 2 4 0.4 2.9
Starter motor M6 × 1.0 2 10 1.0 7.2
Starter relay terminal M6 × 1.0 2 4 0.4 2.9
Pick-up coil M6 × 1.0 2 10 1.0 7.2 Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC
2 - 20
EC220001
GENERAL TORQUE SPECIFICATIONS
This chart specifies torque for standard fasten-
ers with standard I.S.O. pitch threads. Torque
specifications for special components or
assemblies are included in the applicable sec-
tions of this book. To avoid warpage, tighten
multi-fastener assemblies in a crisscross fash-
ion, in progressive stages, until full torque is
reached. Unless otherwise specified, torque
specifications call for clean, dry threads. Com-
ponents should be at room temperature.
A: Distance between flats
B: Outside thread diameter
EC230000
DEFINITION OF UNITS
A
(Nut)B
(Bolt)TORQUE
SPECIFICATION
Nm mkg ftlb
10 mm
12 mm
14 mm
17 mm
19 mm
22 mm6 mm
8 mm
10 mm
12 mm
14 mm
16 mm6
15
30
55
85
1300.6
1.5
3.0
5.5
8.5
134.3
11
22
40
61
94
Unit Read Definition Measure
mm
cmmillimeter
centimeter10
-3 meter
10-2 meterLength
Length
kg kilogram 10
3 gram Weight
N Newton 1 kg
× m/sec
2 Force
Nm
m  kgNewton meter
Meter kilogramN
× m
m
× kgTorque
Torque
Pa Pascal N/m
2Pressure
N/mm Newton per millimeter N/mm Spring rate
L
cm
3 Liter
Cubic centimeter—
—Volume or capacity
Volume or capacity
r/min Revolution per minute
—Engine speed
GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS

SPEC
2 - 1
CARACTERISTIQUES
CARACTERISTIQUES GENERALES
Nom du modèle: WR450FW (USA, CDN, AUS, NZ)
WR450F (EUROPE, ZA)
Numéro de code de modèle: 5TJE (USA)
5TJF (EUROPE)
5TJG (CDN, AUS, NZ, ZA)
Dimensions: USA, ZA, CDN EUROPE, AUS, NZ
Longueur totale 2.175 mm (85,63 in) 2.190 mm (86,22 in)
Largeur totale 825 mm (32,48 in)←
Hauteur totale 1.295 mm (50,98 in) 1.300 mm (51,18 in)
Hauteur de la selle 980 mm (38,58 in) 990 mm (38,98 in)
Empattement 1.485 mm (58,46 in)←
Garde au sol minimale 360 mm (14,37 in) 370 mm (14,57 in)
Poids à sec:
Sans huile ni carburant 112,5 kg (248,0 lb)
Moteur:
Type de moteur Moteur 4 temps refroidi par liquide, double arbre à
cames en tête
Disposition des cylindres Monocylindre, incliné vers l’avant
Cylindrée449 cm
3 (15,8 Imp oz, 15,2 US oz)
Alésage × course 95,0 × 63,4 mm (3,74 × 2,50 in)
Taux de compression 12,3 : 1
Système de démarrage Kick et démarreur électrique
Système de lubrification: Carter sec
Type ou qualité d’huile:
Huile moteur (USA et CDN)
Yamalube 4, SAE10W30 ou SAE20W40
Yamalube 4-R, SAE10W50
API Service de type SG et au-delà
JASO MA
(Sauf USA et CDN)
SAE10W30, SAE10W40, SAE15W40, SAE20W40
ou SAE20W50
API Service de type SG et au-delà
JASO MA
-20 -10 0 10 20 30 40 50
˚C 0 10 30 50 70 90 110 130
˚F
YAMALUBE 4(10W-30) ou SAE 10W-30
YAMALUBE 4(20W-40) ou SAE 20W-40
YAMALUBE 4-R(10W-50) ou SAE 10W-50
-20 -10 0 10 20 30 40 50
˚C
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40
SAE 20W-50
CARACTERISTIQUES GENERALES

SPEC
2 - 2 Capacité d’huile:
Huile moteur
Vidange périodique 0,95 L (0,84 Imp qt, 1,00 US qt)
Avec remplacement du filtre à huile 1,0 L (0,88 Imp qt, 1,06 US qt)
Quantité totale 1,2 L (1,06 Imp qt, 1,27 US qt)
Quantité de liquide de refroidissement (tout circuit
compris):1,0 L (0,88 Imp qt, 1,06 US qt)
Filtre à air: Elément de type humide
Carburant:
Type Essence super sans plomb uniquement, avec indice
d’octane de recherche égal ou supérieur à 95.
Capacité du réservoir 8,0 L (1,76 Imp gal, 2,11 US gal)
Réserve 1,1 L (0,24 Imp gal, 0,29 US gal)
Carburateur:
Type FCR MX39
Fabricant KEIHIN
Bougie:
Type/fabricant CR8E/NGK (type à résistance)
Ecartement 0,7 à 0,8 mm (0,028 à 0,031 in)
Type d’embrayage: Humide, multidisque
Boîte de vitesse:
Système de réduction primaire Pignon
Taux de réduction primaire 61/23 (2,652)
Système de réduction secondaire Transmission par chaîne
Taux de réduction secondaire 50/13 (3,846)
Type de boîte de vitesses Toujours en prise, 5-rapports
Commande Pied gauche
Rapport de démultiplication: 1ère 29/12 (2,417)
2ème 26/15 (1,733)
3ème 21/16 (1,313)
4ème 21/20 (1,050)
5ème 21/25 (0,840)
Châssis: USA, ZA, CDN EUROPE, AUS, NZ
Type de cadre Simple berceau dédou-
blé←
Angle de chasse 27,3°27,0°
Chasse 117 mm (4,61 in) 116 mm (4,57 in)
Pneus:
Type A chambre à air
Taille (avant) 80/100-21 51M (USA, CDN, ZA)
90/90-21 54R (EUROPE, AUS, NZ)
Taille (arrière) 110/100-18 64M (USA, CDN, ZA)
130/90-18 69R (EUROPE, AUS, NZ)
Pression de gonflage (avant et arrière) 100 kPa (1,0 kgf/cm
2, 15 psi)
CARACTERISTIQUES GENERALES

SPEC
2 - 3 Freins:
Type de frein avant Frein monodisque
Commande Main droite
Type de frein arrière Frein monodisque
Commande Pied droit
Suspension:
Suspension avant Fourche télescopique
Suspension arrière Bras oscillant (suspension monocross à bras)
Amortisseur:
Amortisseur avant Ressort hélicoïdal/amortisseur hydraulique
Amortisseur arrière Ressort hélicoïdal/pneumatique, amortisseur
hydraulique
Débattement des roues:
Débattement de roue avant 300 mm (11,8 in)
Débattement de roue arrière 305 mm (12,0 in)
Système électrique:
Système d’allumage CDI
Système de génération Alternateur avec rotor à aimantation permanente
Type de batterie YTZ7S
Tension/capacité de la batterie 12 V/6 Ah
Densité1,310
Type de phare: Ampoule au quartz (halogène)
Puissance × quantité:
Phare 12 V 35/36,5 W × 1
Feu arrière 12 V 1,6/0,3 W × 1
CARACTERISTIQUES GENERALES