1. GENERAL INFORMATION MXU 250R/300R SPECIFICATIONS (MXU 250R) Model No. LG50AD Air cleaner type & No Wet type element Fuel System Name & Type MXU 250R 12.5 L (2.63 lmp Fuel capacity Overall length 1980 mm (79.2 in) gal, 3.25 US gal Carburetor Overall width 1110 mm (44.4 in) Type PD Overall height 1100 mm (44.0 in) Main jet NO. 98 Wheel base 1200 mm (48.0 in) Venturi dia. 22 mm (0.88 in) Engine type O.H.C. Throttle type PISTON Displacement 249 cm3 (15.2 cu-in) Full transistor Ignition System Electrical Equipment Type Fuel Used 92# nonleaded gasoline digital ignition Front wheel 117 kg (257.4 lbs) Ignition timing 5°BTDC/1000rpm Dry weight Rear wheel 105 kg (231 lbs) Spark plug DPR7EA-9 Total 222 kg (488.4 lbs) Front wheel 124 kg (272.8 lbs) Spark plug gap 0.60.7mm (0.002 0.003 in) Curb weight Rear wheel 112 kg (246.4 lbs) Battery Capacity 12V14AH Total 236 kg (519.2 lbs) Dry, centrifugal Tires Front wheel 22*7-10 Clutch type automatic Rear wheel 22*10-10 Clutch operation system Automatic (V-belt) Ground clearance 240 mm (9.6 in) Drive Train Helical gear/spur Min. turning radius 2900 mm (116 in) Primary reduction system gear Starting system Electric/Recoil starter Secondary reduction system Chain drive Type Gasoline, 4-stroke Forward drive high ratio 10.01~26.53 Cylinder arrangement Single cylinder Reverse ratio 19.21~50.92 Combustion chamber type Semi-sphere Valve arrangement O.H.C., chain drive Bore x stroke 72.7 x 60 mm FR/RR tire rolling 1733(K)/1767(M)-FR Moving Device (2.9 x 2.4 in) circumference 1743(K)/1796(M)-RR Compression ratio 10.3:1 Front 15 kgf/cm (1500kPa, Tire pressure 0.28 kg/cm (28 Compression pressure Rear Kpa, 3.2 psi) 213 psi) (Rider only) Intake valve Open 5° BTDC Engine Turning Left 36° (at 1 mm lift) Close 41° ABDC angle Right 36° Exhaust valve Open 37° BBDC Brake system type Front Disk brake (at 1 mm lift) Close 5° ATDC Rear Disk brake Valve clearance Intake 0.1 mm (0.004 in) (cold) Exhaust 0.1 mm (0.004 in) Front Double A-Arm Suspension type Idle speed (rpm) 1500 rpm Forced pressure & Rear Swing Arm Lubrication type System Lubrication Wet sump Oil pump type Trochoid Frame type Double cradle Oil filter type Full-flow filtration Oil capacity 1.6 L (1.4 lmp qt, 1.7 Us qt) Oil exchanging 1.4 L (1.23 lmp qt, capacity 1.48 Us qt) Cooling Type Liquid cooled 1-2