2008 YAMAHA WR 450F display

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Page 54 of 224

YAMAHA WR 450F 2008  Owners Manual 2-27
CABLE ROUTING DIAGRAM
1. Throttle cable
2. Clamp
3. Brake hose
4. Clutch cable
5. Hose guide
6. Main switch coupler
7. Wire harness
8. Headlight coupler
9. Hot starter cable
10. Multi-function di

Page 55 of 224

YAMAHA WR 450F 2008  Owners Manual 2-28
CABLE ROUTING DIAGRAM
D. Secure the coupler by inserting 
it into the multi-function display 
bracket.
E. Pass the throttle cables, clutch 
cable and hot starter cable be-
tween the upper bracket

Page 188 of 224

YAMAHA WR 450F 2008  Owners Manual 6-27
STEERING
STEERING
REMOVING THE STEERING
Order Part name Qty Remarks
TIGHTENING STEPS:
• Tighten ring nut. 38 Nm (3.8 m•kg, 27 ft•lb)
• Loosen it one turn.
• Retighten it. 7 Nm (0.7 m

Page 191 of 224

YAMAHA WR 450F 2008  Owners Manual 6-30
STEERING
6. Install:
• Washer "1"
7. Install:
• Front fork "1"
• Upper bracket "2"
• Main switch "3"
• Front brake hose guide bracket 
"4"
• Temporarily tighten the pinch bolts 
(lowe

Page 202 of 224

YAMAHA WR 450F 2008  Owners Manual 7-1
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
ELECTRICAL
ELECTRICAL 
COMPONENTS AND 
WIRING DIAGRAM
ELECTRICAL COMPONENTS
1. Headlight
2. Multi-function display
3. Engine stop switch
4. Clutch switch
5

Page 203 of 224

YAMAHA WR 450F 2008  Owners Manual 7-2
ELECTRICAL COMPONENTS AND WIRING DIAGRAM
WIRING DIAGRAM
1. Headlight
2. Multi-function display
3. Engine stop switch
4. Clutch switch
5. Diode
6. Starter relay diode
7. Throttle position sensor
8.

Page 221 of 224

YAMAHA WR 450F 2008  Owners Manual 7-20
SIGNALING SYSTEM
SIGNALING SYSTEM
INSPECTION STEPS
If the speedometer will not operate, use the following inspection steps.
*1 marked: Refer to "CHECKING AND CHARGING THE BATTERY" section in the

Page 222 of 224

YAMAHA WR 450F 2008  Owners Manual 7-21
SIGNALING SYSTEM
CHECKING THE COUPLERS AND 
LEADS CONNECTION
1. Check:
• Couplers and leads connection
Rust/dust/looseness/short-circuit
→Repair or replace.
CHECKING THE MULTI-FUNCTION 
DISPL
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