1. GENERAL INFORMATION
1-3
MX’er SYSTEM
SPECIFICATIONS
Name & Model No. LA25AB
Motorcycle Name & Type MX’er
Overall length (mm) 1685
Overall width (mm) 980
Overall height (mm) 990
Wheel base (mm) 1120
Engine type OHC
Displacement (cc) 124
Fuel Used 92# nonleaded gasoline
Front wheel 74
Net weight (kg) Rear wheel 78
Total 152
Front wheel 80
Gross weight(kg) Rear wheel 82
Total 162
Front wheel 20*7-8
Rear wheel 22*10-8
Ground clearance (mm) 130
Perform-
Breaking distance
(m)(ANSI)
20.6 below
ance
Min. turning radius (m) 2.5
Starting system Starting motor
Type Gasoline, 4-stroke
Cylinder arrangement Single cylinder
Combustion chamber type Semi-sphere
Valve arrangement O.H..C., chain drive
Bore x stroke (mm) 56.5 x 49.5
Compression ratio 9.2:1
Compression pressure
(kg/cm²)
14.0
Max. output (ps/rpm) 9.8/7500
Max. torque (kg m/rpm) 0.98/5500
Intake
Open 5.5° BTDC
Port
(1mm)
Close 27.5° ABDC
Timi
Exhaust
Open
36° BBDC
(1mm)
Close 4° ATDC
Valve clearance
Intake 0.06
(cold) (mm)
Exhaust 0.06
Idle speed (rpm) 1700rpm
Lubrication type
Forced pressure &
wet sump
Oil pump type Inner/outer rotor type
Oil filter type Full-flow filtration
Oil capacity 1.0 liter
Oil exchanging
capacity
0.9 liter
Cooling Type Forced air cooling
Air cleaner type & No Sponge
Fuel capacity 8.1 liters
Type PD
Piston dia. (mm) 14.8mm
Venturi dia.(mm)
φ25
Throttle type PISTON
Type CDI
Ignition timing 15°BTDC/1700rpm
Contact breaker Non-contact point type
Spark plug
NGK
CR8E
Spark plug gap 0.60.7mm
Battery Capacity 12V8AH
Clutch Type CVT
Type Helical gear
Operation
Automatic centrifugal
type
Type Chain drive
Reduction 1st
2.8-0.95
ratio
2nd
7.226
Counter gear ratio
26.902
Front Caster angle
Axle
Trail length
Tire
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