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Specifications
Technical Information 149
Overall length
Overall width
Overall height
Wheelbase
Seat height
Footpeg height
Ground clearance
Item English
85.9 in
32.6 in
50.0 in
58.6 in
37.4 in
16.5 in
12.7 in
Metric
Type
Dimension
Frame
F. suspension
R. suspension
Front tire
Twin tube
Telescopic fork
travel 10.8 in (275 mm)
stroke 12.2 in (310 mm)
Pro-link
travel 12.3 in (313 mm)
80/100 – 21 51M
DUNLOP MX51FA
Rear tire
100/90 – 19 57M
DUNLOP
15 psi (100 kPa, 1.0 kgf/cm
2
)
Tire pressure, front (cold)
bias-ply, tubeTire type
15 psi (100 kPa, 1.0 kgf/cm
2
)
Tire pressure, rear (cold)
MX51
Fork oil capacity
(except fork damper)
F. brake, swept area
R. brake, swept area
Fuel
unleaded gasoline, pump
octane number of 91 or
higher
Fuel capacity
Caster angle
Trail length
Single disc brake
51.8 in
2
(334.5 cm
2
)
Single disc brake
60.6 in
2
(391.1 cm
2
)
27°23’
1.5 US gal
4.6 in 118 mm
12.3 US oz 363 cm
3
5.7R
Item English
3.02 x 2.12 in
Cylinder arrangement
Bore and stroke
Displacement
Compression ratio
Valve clearance
(cold)
Intake:
Exhaust:
0.005 ± 0.001 in
(0.12 ± 0.03 mm)
0.011 ± 0.001 in
(0.28 ± 0.03 mm)
Engine oil capacity
After draining
After draining and
oil filter change
After disassembly
After disassembly
Transmission oil
capacity
After draining
Identification number
Idle speed
GQ28A
2,000 ± 100 rpm
Liquid cooled, 4-stroke
Single 5° inclined from
vertical
0.70 US qt
0.73 US qt
0.90 US qt
0.72 US qt
0.79 US qt
Type
Metric
0.67R
0.69R
0.85R
0.68R
0.75R
76.8 x 53.8
mm
Engine
Throttle body
1.09 US qt
1.16 US qt
1.03R
1.10R
Cooling capacity after
draining
after disassembly
Cooling system
13.2 : 1
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
3.166
2.357
1.888
1.555
1.333
1.136
3.769
Gear shift pattern
Ignition
Starting system
Spark plug :
Standard
ECM
Kickstarter
Left foot-operated return
system 1-N-2-3-4-5
NGK R0451B-8
Spark plug gap
0.024 – 0.028 in
(0.6 – 0.7 mm)
2,181 mm
827 mm
1,271 mm
1,489 mm
951 mm
418 mm
322 mm
15.22 cu-in 249.4 cm
3
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