1. GENERAL INFORMATION MXU 250R/300R SPECIFICATIONS (MXU 300R) Model No. LC60AD Air cleaner type & No Wet type element Name & Type MXU 300R 12.5 L (2.63 lmp gal, Fuel System Fuel capacity Overall length 1980 mm (79.2 in) 3.25 US gal Carburetor Overall width 1110 mm (44.4 in) Type CVK Overall height 1100 mm (44.0 in) Main jet NO. 112 Wheel base 1200 mm (48.0 in) Venturi dia. 31 mm (1.24 in) Engine type O.H.C. Throttle type Valve Piston Electrical Equipment 270 cm3 (16.2 cu-in) Full transistor digital Ignition System Displacement Type Fuel used 92# nonleaded gasoline ignition Front wheel 117 kg (257.4 lbs) Ignition timing 5°BTDC/1500 rpm Dry weight Rear wheel 105 kg (231 lbs) Spark plug DPR7EA-9 Total 222 kg (488.4 lbs) 0.60.7mm (0.002 Spark plug gap 125 kg (275 lbs) 0.003 in) Front wheel Curb weight Rear wheel 112 kg (246.4 lbs) Battery Capacity 12V14AH Total 236 kg (519.2 lbs) Dry, centrifugal Clutch type automatic Front wheel 22*7-10 Tires Clutch operation system Automatic (V-belt) Drive Train Rear wheel 22*10-10 Helical gear/spur Ground clearance 240 mm (9.6 in) Primary reduction system gear/bevel gear Min. turning radius 3200 mm (128 in) Secondary reduction Electric/Recoil Driven mechanism Starting system system starter Type Gasoline, 4-stroke Forward Drive High Ratio 9.21 ~ 24.42 Cylinder arrangement Single cylinder Forward Drive Low Ratio 17.54 ~ 46.50 Combustion chamber type Semi-sphere Backward Drive Ratio 14.64 ~ 38.80 Valve arrangement O.H.C., chain drive FR/RR tire rolling 1733(K)/1767(M)-FR Moving Device 72.7 x 65.2 mm circumference 1743(K)/1796(M)-RR Bore x stroke (2.9 x 2.6 in) Tire pressure (Rider Front 0.28 kg/cm (28 Compression ratio 11:1 Rear Kpa, 3.2 psi) only) Compression pressure 16 kgf/cm (1600kPa, 227 psi) Turning angle Left 36° Right 36° Engine Intake valve Opens 9° BTDC (at 1mm lift) Closes 40° ABDC Brake system type Front Disk brake Exhaust valve Opens 42° BBDC Rear Disk brake (at 1mm lift) Closes 7° ATDC Front Double A-Arm Suspension type Valve clearance Intake 0.1 mm (0.004 in) Rear Swing Arm (cold) Exhaust 0.1 mm (0.004 in) Frame type Double cradle Idle speed (rpm) 1600 rpm Forced pressure & Lubrication System Lubrication type Wet sump Oil pump type Trochoid 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 1-3