1. SPECIFICATIONS ZX 50 SPECIFICATIONS Name & Model SC10AS Lubrication oil capacity (liter) 0.80 Overall length (mm) 1792 Air cleaner type & No. Wet, single Overall width (mm) 690 Fuel capacity (liter) 4.9 Overall height (mm) 1053 Type Plunger type Wheel base (mm) 1225 Carburetor Piston dia. (mm) Engine type Air cooled 2-stroke Venturi dia. (mm) 14 Displacement (cc) 49.4 cc Ignition system type CDI electromagnetic Ignition Net weight (kg) Ignition timing F mark 15.5°2°BTDC/2000rpm 92.5 Spark NGK BR8HSA Seating capacity 2 riders (110kg) plug ND Gross weight(kg) 150 Spark plug gap (mm) 0.60.7 Battery capacity 12V3AH Front wheel 120/70-12 Power-transmission Tires Power to transmission gear Rear wheel 120/70-12 gear-clutch Ground clearance (mm) 170 Reduction ratio of power to transmission Braking distance (m) (Initial speed Km/h) 7m (30km/h) Clutch type Dry multi-disc clutch Min. turning radius (mm) 1940 Transmission gear operation Automatic centrifugal Starting motor & type type Starting system kick starter Transmission ratio 1 speed Fuel type Gasoline, 2-stroke motor oil Reduction Type Two-stage reduction Cylinder arrangement Single cylinder, flat gear 1st reduction ratio Combustion chamber type Semi-sphere 2nd reduction ratio Valve arrangement Reed valve & piston Transmission gear type Non-stage transmission Bore x stroke (mm) 39 x 41.4 Tire pressure Front wheel 1.50 1.75 (kg/cm) Rear wheel 1.75 2.25 Compression ratio 7.3 : 1 Compression pressure Turning angle Right & left 45° 11.5kg/cm (kg/cm rpm) Brake system Front wheel Expanding/hydraulic Max. output (kw/rpm) 3.75/7000kw/rpm type Rear wheel Expanding Max. torque (kg-m/rpm) 4.5/6500 kg m/rpm Suspension Front wheel Telescope Open Automatic controlled type Rear wheel Unit swing Intake Close Automatic controlled Shock absorber Front wheel Telescope Port Open type Rear wheel Unit swing Exhaust timing Close Frame type Pipe under bone Open Exhaust CO 4.5% Scavenge Close emission Idle speed (rpm) 2100100 HC 7000ppm Max concentration Lubrication type Separate type Oil pump type Plunger type Oil filter type Full-flow filtration 1-1