MAINTENANCE V45 Ignition timing At idle: 10°BTDC Advance starts: 10°BTDC at 1,500 rpm Full advance: 37°BTDC at 3,300 rpm Valve clearance Cold (Below 35°C, 95°F): Intake/Exhaust: 0.12 mm (0.005 in) Idle speed: 1,000 ± 100 rpm Carburetor synchronization: All carburetors within 60 mm (2.4 in) Hg Cylinder compression: 13 ± 2 kg/cm2 (184 ± 28 psi) Throttle grip free play: 2-6 mm (1/8-1/4 in) Rear brake pedal free play: 20-30 mm (3/4-1-1/4 n) Tire: 1— V45 MAGNA Tire size Front Rear 110/90-18 61H 130/90-17 68H [130/90-16 67H1 Cold tire pressure, psi (kPa, kg/cm2) Up to 90 kg (200 lbs) 32 (225, 2.25) 32 (225, 2.25) load 90 kg (200 lbs) load 32 (225, 2.25) 40 (280, 2.80) to vehicle capacity load Tire brand Bridgestone L303 0508 Dunlop F11 K127C Suspension air pressure: Front, 6-14 psi ( 40-100 kPa, 0.4-1.0 kg/cm2) Rear, 14-57 psi (100-400 kPa, 1.0-4.0 kg/cm2) TOOLS Special Vacuum gauge set Carburetor pilot screw wrench Carburetor throttle adjusting bit Common Adjusting wrench 07404-0020000 or M937B-021—XXXXX (U.S.A. only) 07908-4220201 07908—MB00000 or KS—AH-008—MBO (U.S.A. only) 07708-0030200 or Snap-on Tool Wrench-X0810 or equivalent availabe in U.S.A. 3-2 28 Date of Issue: October, 1982 © HONDA MOTOR CO., LTD.