Service Manual

SPECIFICATIONS
Engine type Air cooled 4 cycle, gasoline, OHV
Bore and stroke .64 mm x 44 mm (2.52 in x 1.73 in)
Displacement 141 cc (8.7 cu. in)
Maximum output 4 HP/3600 rpm
Maximum torque 0.83 kg-m (6.00 ft-lb)/2700 rpm
Spark plug NGK BPR6ES
Spark plug gap .0.7 mm 0.8 mm (0.028 in 0.032 in)
Ignition coil air gap.. .38-50 mm (.015-,020)
Fuel Unleaded regular
Oil.. 30 weight or low-30 multi-viscosity
Oil capacity
550 ml (18.59 0Z)
Ignition system Electronic transistorized ignition
Ignition timing degree 25 BTDC rpm
Starting system. .Recoil starter/Electric (12 volt)
Governor Centrifugal mechanical
Pump system.. Trochoid oil pump
Carburetor Butterfly valve
Air cleaner Polyurethane foam element
Dry weight 12.0 kg (26.5 Ibs)
Fuel tank capacity .1.2
L (.26 gallon)
(KW) HP
3
2
TORQUE
(Nm) kgrn
0 2000 2500 3000 3600
RPM)
Figure 1-2
2