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Yamaha WR450F 2-TRAC User Manual

Yamaha WR450F 2-TRAC
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SPEC
MAINTENANCE SPECIFICATIONS
8
TIGHTENING TORQUES
Tightening
Part to be tightened
Thread torque
Remarks
size
N
·
mm
·
kg
Carburetor drain plug screw M6 x 0.75 2.5 0.25
Engine guards (3, 4) and frame M8 x 1.25 23 2.3
Frame and rear frame (upper) M8 x 1.25 32 3.2
Frame and rear frame (under) M8 x 1.25 29 2.9
Muffler (rear) and frame M8 x 1.25 35 3.5
Muffler (middle) and frame M8 x 1.25 35 3.5
Muffler band/exhaust pipe M8 x 1.25 16 1.6
Nut pivot shaft and frame M16 x 1.5 88 8.8 Add Loctite® 243
Screw and nut pivot shaft M6 x 1.0 14 1.4 Add Loctite® 243
Rear shock absorber upper and frame M10 x 1.25 55 5.5
Rear shock absorber (lower) and arm relay M10 x 1.25 55 5.5
Front fork handle crown and inner tube M8 x 1.25 20 2.0
Front fork under bracket and inner tube M8 x 1.25 12 1.2
Bracket meter bolt and handle crown M6 x 1.0 7 0.7
Protector guide compl. screw and outer tube M5 x 0.8 2 max 0.2 max
Front fork protector bolt and bottom front fork M6 x 1.0 10 1.0
Pitch bolt and bottom front fork M8 x 1.25 20 2.0
Front fork protector screw (upper)
and front fork protector M5 x 0.8 2 max 0.2 max Add Loctite® 243
Front fork protector screw (middle)
and front fork protector M5 x 0.8 2 max 0.2 max Add Loctite® 243
Front fork protector screw (lower)
and front fork protector M5 x 0.8 2 max 0.2 max Add Loctite® 243
on the
screw/spacer
Front fender and under bracket M6 x 1.0 7 0.7
Side covers (lower) and frame M6 x 1.0 7 0.7
Side covers (front) and panel radiator (lower) M6 x 1.0 6 0.6
Side covers (front) and fuel tank/radiator M6 x 1.0 6 0.6
Single seat assy and frame M8 x 1.25 23 2.3
Upper handle holder and handle crown M8 x 1.25 28 2.8
Steering damper assy and upper handle holder M6 x 1.0 12 1.2 Add Loctite® 542
Bracket steering 1 (steering damper system)
and bracket steering 2 M5 x 0.8 7 0.7 Add Loctite® 542
L=12 mm, L=16 mm
Front wheel shaft and front fork M16 x 1.5 105 10.5
Front caliper and front fork M8 x 1.25 23 2.3
Clamp hose brake and front fork M6 x 1.0 10 1.0
Cover hose brake and nut axle front M8 x 1.25 16 1.6
Cover hose brake and front fork M6 x 1.0 7 0.7
Screw throttle grip M5 x 0.8 4 0.4
Master cylinder and handlebar M6 x 1.0 9 0.9
Body cowling (upper) and stay 1/bracket main switch M6 x 1.0 10 1.0
Headlight (lower) and headlight stay 2 M6 x 1.0 7 0.7
Switches handle and handlebar M3 x 0.5 0.6 max 0.06 max
Clutch holder lever M5 x 0.8 4 0.4
Bracket 1 (hydraulic drive unit assy)
and fuel tank damper holder M6 x 1.0 10 1.0
Bracket 2 (hydraulic drive unit assy) and cylinder M6 x 1.0 10 1.0
Hydraulic drive unit assy and engine crankcase (LH) M6 x 1.0 10 1.0 Add Loctite® 243

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Yamaha WR450F 2-TRAC Specifications

General IconGeneral
Displacement449cc
Compression Ratio12.5:1
Transmission5-speed
Final DriveChain
Front Tire80/100-21
Engine TypeLiquid-cooled, 4-stroke, DOHC, 5-valve
Bore x Stroke95.0mm x 63.4mm
Front BrakeSingle disc
Rear BrakeSingle disc

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