Honda CRF450X 2007, Owner'S Manual

Page: 158 / 185

Technical Information
153
Specifications
Overall length
Overall width
Overall height
Wheelbase
Seat height
Footpeg height
Ground clearance
Item English
85.8 in
32.3 in
50.1 in
58.4 in
37.9 in
17.0 in
13.6 in
Metric
Type
Dimension
Frame
Fork oil capacity
(except fork damper
per leg)
F. suspension
R. suspension
Tire size, front
F. brake, swept area
R. brake, swept area
Fuel recommendation
Fuel capacity
Caster angle
Trail length
Twin tube
Telescopic fork,
travel 11.0 in (279 mm)
stroke 12.4 in (315 mm)
Pro-link,
travel 12.3 in (313 mm)
80/100 – 21 51M
bias-ply, tube type
Single disc brake
51.8 in
2
(334.5 cm
2
)
Single disc brake
60.6 in
2
(391.1 cm
2
)
unleaded gasoline, pump
octane number of 91 or
higher
27 10
Tire pressure, front (cold) 15 psi (100 kPa, 1.0 kgf/cm
2
)
Tire pressure, rear (cold)
2.27 US gal
4.32 in
11.2 US oz 332 cm
3
109.7 mm
8.6
R
DUNLOP D742F
Tire size, rear
Tire type
110/100 – 18 64M
DUNLOP D756
Fuel reserve capacity 0.37 US gal 1.4
R
Item English
3.78 x 2.44 in
0.31 in
Cylinder arrangement
Bore and stroke
Displacement
Compression ratio
Engine oil capacity
After draining
After draining and
oil filter change
After disassembly
After disassembly
Transmission oil
capacity
After draining
Type
Identification number
Main jet
Jet needle
Piston valve
FCR13A
# 142
NHTU
Slow jet
Pilot screw opening
Float level
Idle speed
Liquid cooled, 4-stroke
# 45
1-1/4 turns out
1,700
±
100 rpm
Type
Metric
0.67 R
0.70 R
0.87 R
0.65 R
0.75 R
96.0 x 62.1
mm
8.0 mm
Engine
Carburetor
12.0 : 1
Valve clearance (cold)
Intake: 0.006
±
0.001 in
(0.16
±
0.03 mm)
Exhaust: 0.011
±
0.001 in
(0.28
±
0.03 mm)
Clutch type
Transmission
Primary reduction
Gear ratio I
Gear ratio II
Gear ratio III
Gear ratio IV
Gear ratio V
Final reduction
Item English Metric
Drive train
Electrical
Wet, multi-plate type
5-speed, constant mesh
2.739
2.230
1.625
1.235
1.000
0.826
3.923
NGK
DENSO
NGK
DENSO
Gear shift pattern
Ignition
Starting system
Spark plug : Standard
Optional
ICM
Electric, Kickstarter
Battery 12V-6 Ah
Light
Headlight 12V-35 W
Spark plug gap 0.039 – 0.043 in
(1.0 – 1.1 mm)
Fuse
Main fuse 15 A
Left foot-operated return
system 1-N-2-3-4-5
IFR8H11
VK24PRZ11
IFR9H11
VK27PRZ11
2,180 mm
821 mm
1,273 mm
1,483 mm
963 mm
431 mm
345 mm
27.4 cu-in
0.71 US qt
0.74 US qt
0.92 US qt
0.69 US qt
0.79 US qt
449 cm
3
After disassembly
Cooling system,
capacity
After draining
1.28 US qt (1.21 R )
1.53 US qt (1.45
R
)
Single 6 inclined from
vertical
15 psi (100 kPa, 1.0 kgf/cm
2
)
For USA & CANADA
142-180.qxd 06.3.27 6:37 PM ページ153