2016 YAMAHA WR 450F weight

GENERAL SPECIFICATIONS
2-1
EAS2GC1061
GENERAL SPECIFICATIONS
ModelModel 2GC1 (USA) 2GC2 (CAN)
2GC3 (EUR)
2GC4, 2GC5 (AUS) (NZL) (ZAF)
DimensionsOverall length 2165 mm (85.2 in)
Overall width 825 mm (32.5 in)
Overall height 1280 mm (50.4 in)
Seat height 965 mm (38.0 in)
Wheelbase 1465 mm (57.7 in)
Ground clearance 325 mm (12.80 in)
WeightCurb weight 123 kg (271 lb)

TIGHTENING TORQUES
2-13
EAS2GC1066ENGINE TIGHTENING TORQUES
TIP
- marked portion shall be checked for torque tightening after break-in or before each race.
ITEM Thread
size Q’ty TIGHTENING TORQUES Remarks
Camshaft cap bolt M6 8 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Cylinder head blind plug M12 1 28 Nm (2.8 m·kgf, 20 ft·lbf)
Spark plug M10 1 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
Cylinder head stud bolt (exhaust
pipe) M6 3 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Cylinder head bolt M10 4See TIP.*1
Cylinder head bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Cylinder head cover bolt M6 3 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil passage plug (cylinder head) M8 1 15 Nm (1.5 m·kgf, 11 ft·lbf)
Cylinder bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil pressure check bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Balancer weight plate screw M6 3 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Balancer driven gear nut M14 1 50 Nm (5.0 m·kgf, 36 ft·lbf) Use a
lock
washer.
Balancer nut M10 1 45 Nm (4.5 m·kgf, 33 ft·lbf) Use a
lock
washer.
Timing chain guide stopper plate
(exhaust side) M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Timing chain tensioner cap bolt M6 1 6 Nm (0.6 m·kgf, 4.3 ft·lbf)
Timing chain tensioner bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Coolant drain bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Radiator hose clamp screw M6 8 1.5 Nm (0.15 m·kgf, 1.1 ft·lbf)
Radiator bolt M6 4 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Radiator pipe bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Radiator pipe joint bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Radiator fan bolt M6 3 8 Nm (0.8 m·kgf, 5.8 ft·lbf)
Water pump housing cover bolt M6 4 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil pump bolt M5 2 5 Nm (0.5 m·kgf, 3.6 ft·lbf)
Oil pump cover screw M4 1 2.0 Nm (0.20 m·kgf, 1.4 ft·lbf)
Oil strainer bolt M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil passage cover bolt (left crank-
case cover) M6 1 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Throttle cable cover bolt M5 1 3.5 Nm (0.35 m·kgf, 2.5 ft·lbf)
Throttle body joint bolt M6 2 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
E
LT
M
LT
LT
LT

CLUTCH......................................................................................................... 6-41
REMOVING THE CLUTCH ...................................................................... 6-44
CHECKING THE FRICTION PLATES...................................................... 6-44
CHECKING THE CLUTCH PLATES ........................................................ 6-44
CHECKING THE CLUTCH SPRINGS...................................................... 6-44
CHECKING THE CLUTCH HOUSING ..................................................... 6-45
CHECKING THE CLUTCH BOSS ............................................................ 6-45
CHECKING THE PRESSURE PLATE ..................................................... 6-45
CHECKING THE PUSH LEVER SHAFT .................................................. 6-45
CHECKING THE CLUTCH PUSH RODS ................................................ 6-45
CHECKING THE PRIMARY DRIVE GEAR .............................................. 6-45
CHECKING THE PRIMARY DRIVEN GEAR ........................................... 6-46
INSTALLING THE OIL SEAL ................................................................... 6-46
INSTALLING THE RIGHT CRANKCASE COVER ................................... 6-46
INSTALLING THE CLUTCH ..................................................................... 6-46
INSTALLING THE KICKSTAR TER LEVER ............................................. 6-49
KICKSTATER ................................................................................................. 6-50
REMOVING THE KICK SHA FT ASSEMBLY ........................................... 6-51
CHECKING THE KICK SHAFT AND RATCHET WHEEL ........................ 6-51
CHECKING THE KICK GEAR, KICK IDLE GEAR AND RATCHET
WHEEL .................................................................................................... 6-51
INSTALLING THE KICK SHAFT ASSEMBLY .......................................... 6-51
INSTALLING THE KICK IDLE GEAR ....................................................... 6-52
SHIFT SHAFT ................................................................................................. 6-53
REMOVING THE SHIFT GUIDE AND SHIFT LEVER ASSEMBLY ......... 6-54
REMOVING THE SEGMENT ................................................................... 6-54
CHECKING THE SHIFT SHAFT .............................................................. 6-54
CHECKING THE SHIFT GUIDE AND SHIFT LEVER ASSEMBLY ......... 6-54
CHECKING THE STOPPER LEVER ....................................................... 6-54
INSTALLING THE STOPPE R LEVER ............................. ........................ 6-55
INSTALLING THE SEGMENT.................................................................. 6-55
INSTALLING THE SHIFT GUIDE AND SHIFT LEVER ASSEMBLY ....... 6-55
INSTALLING THE SHIFT SHAFT ............................................................ 6-56
INSTALLING THE SHIFT PEDAL ............................................................ 6-56
OIL PUMP AND BALANCER GEAR ............................................................. 6-57
REMOVING THE BALANCER ................................................................. 6-59
CHECKING THE PRIMARY DRIVE GEAR, BALANCER SHAFT DRIVE GEAR, AND BALANCER WEIGHT GEAR .................................. 6-59
CHECKING THE BALANCER .................................................................. 6-59
CHECKING THE OIL PUMP .................................................................... 6-59
ASSEMBLING THE OIL PUMP ................................................................ 6-60
INSTALLING THE OIL PUMP AND BALANCER GEAR .......................... 6-61

OIL PUMP AND BALANCER GEAR
6-58
Removing the balancer
OrderPart name Q’tyRemarks
Primary driven gear Refer to “CLUTCH” on page 6-41.
Right crankcase cover Refer to “CLUTCH” on page 6-41.
Generator rotor Refer to “GENERATOR AND STARTER
CLUTCH” on page 6-63.
1 Nut (balancer) 1
2 Nut (primary drive gear) 1
3 Nut (balancer shaft driven gear) 1
4 Lock washer 1
5Balancer 1
6 Straight key 1
7 Conical washer 1
8 Primary drive gear 1
9 Balancer shaft drive gear 1
10 Lock washer 1
11 Balancer weight gear 1
For installation, reverse the removal proce-
dure.
45 Nm (4.5 m kgf, 33 ft Ibf)T.R.
100 Nm (10 m kgf, 72 ft lbf)T.R.
50 Nm (5.0 m kgf, 36 ft Ibf)T.R.
New
10 Nm (1.0 m kgf, 7.2 ft Ibf)T.R.
11
LT

OIL PUMP AND BALANCER GEAR
6-59
EAS2GC1299REMOVING THE BALANCER
1. Loosen:• Balancer nut “1”
• Primary drive gear nut “2”
• Balancer weight gear nut “3”
TIP
Place an aluminum plate “a” between the teeth
of the balancer drive gear “4” and balancer
weight gear “5”.
EAS2GC1300CHECKING THE PRIMARY DRIVE GEAR,
BALANCER SHAFT DRIVE GEAR, AND
BALANCER WEIGHT GEAR
1. Check: • Primary drive gear “1”
• Balancer shaft drive gear “2”
• Balancer weight gear “3”Wear/damage  Replace.
EAS2GC1301CHECKING THE BALANCER
1. Check:
•Balancer
Crack/damage  Replace.
EAS2GC1302CHECKING THE OIL PUMP
1. Check:
• Oil pump drive gear
• Oil pump driven gear
• Oil pump housing
• Oil pump housing coverCracks/damage/wear  Replace the defec-
tive part(s).
2. Measure: • Inner-rotor-to-outer-rotor-tip clearance “a”
• Outer-rotor-to-oil-pump-housing clearance
“b”
• Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance “c”
Out of specification  Replace the oil pump.
1
5
4
2
a
43
a
5

OIL PUMP AND BALANCER GEAR
6-61
EAS2GC1304INSTALLING THE OIL PUMP AND BALANC-
ER GEAR
1. Install:• Oil pump assembly “1”
• Oil pump assembly bolt “2”
ECA1DX1023
NOTICE
After tightening the bolts, make sure that
the oil pump turns smoothly.
2. Install:• Balancer weight gear “1”
TIP
Install the balancer weight gear and balancer
shaft with their lower sp lines “a” aligning with
each other.
3. Install:
• Balancer drive gear “1”
TIP
• Align the punched mark “a” on the balancer drive gear with the punched mark “b” on the
balancer weight gear.
• Install the balancer drive gear and crankshaft with the lower splines “c” aligning with each
other. 4. Install:
• Lock washer “1”
• Balancer weight gear nut “2”
• Primary drive gear “3”
• Conical washer “4”
• Primary drive gear nut “5”
• Straight key “6”
•Balancer “7”
• Lock washer “8”
• Balancer nut “9”
TIP
• Apply engine oil to the contact surface and threaded portion of the primary drive gear nut.
• Apply engine oil to the contact surfaces of the
conical washer.
• Place an aluminum plate “a” between the teeth of the balancer drive gear “10” and bal-
ancer weight gear “11”.
• Install the conical wash er with its convex sur-
face “b” outward.
Oil pump assembly bolt
5 Nm (0.5 m·kgf, 3.6 ft·lbf)
LOCTITE®
T R..
1
2
LT
Balancer weight gear nut50 Nm (5.0 m·kgf, 36 ft·lbf)
Primary drive gear nut 100 Nm (10 m·kgf, 72 ft·lbf)
Balancer nut 45 Nm (4.5 m·kgf, 33 ft·lbf)
ba
New
T R..
New
T R..
New
T R..