Section 1 Safety and General Information General Specifications 1 cont. Compression Ratio LH630,LH640,LH685,LH690............................................................................ 8.5:1 LH750,LH755,LH760,LH775............................................................................ 8.7:1 1 Dry Weight LH630,LH640,LH685,LH690,LH755 ............................................................... 51.7 kg (114 lb.) LH760,LH775 .....................................................................................................
52.6 kg (116 lb.) Oil Capacity (w/filter) - approximate, determined by oil filter used:.................................................................................. 1.6-1.8 L (1.7-1.9 U.S. qt.) Coolant Capacity (equal parts of water and ethylene glycol) ............................ 2.0 L (2.18 U.S. qt.) Angle of Operation - Maximum (At Full Oil Level) All Directions .................. 20° Camshaft End Play (With Shim)............................................................................................... 0.076/0.127 mm (0.0030/0.0050 in.) Running Clearance ...................................................................................................
0.025/0.063 mm (0.0010/0.0025 in.) Bore I.D. New ..................................................................................................................... 20.000/20.025 mm (0.7874/0.7884 in.) Max. Wear Limit ................................................................................................ 20.038 mm (0.7889 in.) Camshaft Bearing Surface O.D. New ..................................................................................................................... 19.962/19.975 mm (0.7859/0.7864 in.) Max. Wear Limit ................................................................................................
19.959 mm (0.7858 in.) Carburetor and Intake Manifold Intake Manifold Fastener Torque (torque in 2 increments) ................................ first to 7.4 N·m (66 in. lb.) finally to 9.9 N·m (88 in. lb.) Thermostat Housing Mounting Fastener Torque................................................. 6.2-7.3 N·m (55-65 in. lb.) Carburetor Mounting Fastener Torque.................................................................. 9.9 N·m (88 in. lb.) Connecting Rod Cap Fastener Torque (torque in increments) ........................................................ 11.3 N·m (100 in.
lb.) Connecting Rod-to-Crankpin Running Clearance New ..................................................................................................................... 0.043/0.068 mm (0.0016/0.0026 in.) Max. Wear Limit ................................................................................................ 0.083 mm (0.0032 in.) Connecting Rod-to-Crankpin Side Clearance ...................................................... 0.26/0.63 mm (0.0102/0.0248 in.) Connecting Rod-to-Piston Pin Running Clearance.............................................. 0.015/0.028 mm (0.0006/0.0011 in.) Piston Pin End I.D.
New ..................................................................................................................... 17.015/17.023 mm (0.6699/0.6702 in.) Max. Wear Limit ................................................................................................ 17.036 mm (0.6707 in.) 1 Values are in Metric units. Values in parentheses are English equivalents. Lubricate threads with engine oil prior to assembly. 1.9