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1. GENERAL INFORMATION Mongoose/KXR 90/50
SPECIFICATIONS
(Mongoose/KXR 90)
Name & Model No. LA20AB Air cleaner type & No Sponge
Fuel System
Motorcycle Name & Type Mongoose/KXR 90 Fuel capacity 5.5 liters
Overall length (mm) 1430 Type PB
Carburetor
Overall width (mm) 905 Main jet No. #100
Overall height (mm) 910 Venturi dia.(mm) 14
Wheel base (mm) 965 Throttle type PISTON
Engine type O.H.C. Type CDI
Ignition System
Electrical Equipment
Displacement (cc) 89.9 Ignition timing 28°BTDC/4000rpm
Fuel Used 92# nonleaded gasoline Contact breaker Non-contact point type
Front wheel 58 Spark plug NGK C7HSA
Net weight (kg) Rear wheel 56.5
Total 114.5 Spark plug gap 0.60.7mm
Front wheel 61.5 Battery Capacity 12V4AH
Gross weight(kg) Rear wheel 58.5 Clutch Type CVT
Power Drive System
sion Gear
Transmis-
Total 120 Type Helical gear
Tires Front wheel 18*7-8 Automatic centrifugal
Operation
Rear wheel 18*9-8 Type
Ground clearance (mm) 104 Type V-Belt
Breaking distance
Gear
Reduction
(m)(ANSI) 20.6 below Primary
reduction 0.8~2.5
Starting system Motor & Kick starter Final
Type Gasoline, 4-stroke reduction 9.255
Cylinder arrangement Single cylinder FR/RR tire rolling
1436/1436
Moving Device
Combustion chamber type Semi-sphere circumference(mm)
Valve arrangement O.H.C., chain drive Tire pressure Front 0.25
Bore x stroke (mm) 47X51.8 (kg/cm) Rear 0.25
Compression ratio 10.0:1 Turning Left 35°
Compression pressure angle
(kg/cm) 16.0 Right 35°
Max. output (ps/rpm) 6.3/6500 Brake system Rear Disk brake
Engine
Max. torque (kg m/rpm) 0.7/5500 type Front Drum brake
Intake Open 2°
Swing axle
Device
Damping
Front
Port (1mm) Close 26° Suspension
timing Exhaust Open 44° type Rear Swing arm
(1mm) Close -17°
Valve clearance Intake 0.1 Frame type Steel tube frame
(cold) (mm) Exhaust 0.1
Idle speed (rpm) 1700rpm
Lubrication type Forced pressure &
System
Lubrication
Wet sump
Oil pump type Inner/outer rotor type
Oil filter type Full-flow filtration
Oil capacity 0.8 liter
Oil exchanging
0.7 liter
capacity
Cooling Type Air cooling
1-2