2. GENERAL INFORMATION VITALITY 50 FRAME Standard (mm) Service Limit (mm) Item VITALITY 50 4-stdroke Axle shaft runout 0.2 Radial Front wheel rim runout Axial Front shock absorber spring free length 214.7 Rear wheel rim runout 2.0 Brake drum I.D. Front/rear 110 111 Brake lining thickness Front/rear 6.4/4.0 2.0/2.0 Brake disk runout Front/rear 0.30 Rear shock absorber spring free length 209 ELECTRICAL EQUIPMENT VITALITY 50 (4-stroke) Capacity 12V4AH Voltage 13.013.2V Battery Charging Standard 0.5A/5H~10H current Quick 4A/0.5H Spark plug (NGK) C7HAS Spark plug gap 0.60.7mm Primary coil 0.5 Secondary coil Ignition coil resistance (with plug cap) 8.12K Secondary coil (without plug cap) 3K Pulser coil resistance (20) 118.1118.2 Ignition timing 28°2°BTDC/4000 rpm 2-9