When an engine is in a transversal arrangement, the gyroscopic
effect of the rotating crankshaft will prevent the motorcycle from
tilting laterally to turn; the heavier the crankshaft is, the greater
such resistance will be. Since a single-cylinder engine has a
short crankshaft, its gyroscopic effect is much weaker, it can tilt
laterally leftward or rightward easily, and the driver will feel that
the steering handle is very light.
Due to the above features of single-cylinder engines, off-road
motorcycles with a displacement of 250CC mostly use single-
cylinder engines, as do super-sport motorcycles. Among ordinary
motorcycles, small ones with a displacement of below 125CC
usually use single-cylinder engines.
41
Summary of Contents for Craftsman DM17-S-T
Page 1: ...PRODUCT DESCRIPTION...
Page 18: ...M3 screw 058 2 11 Mounting of connecting screws Assembly of crankcase completed 13...
Page 34: ...Generator assembly completed Generator pulley 048 M4 nut 055 7 3 Mounting of pulley 29...
Page 35: ...M3 screw 063 Crankcase 7 4 Combination of crankcase and generator assembly 30...
Page 41: ...M3 screw 059 Guide wheel stand 9 2 Combination of guide wheel and crankcase 36...
Page 42: ...Overall engine assembly completed Guide wheel assembly 37...
Page 53: ...M2X5 M1 6X4 M3X8 48...