58
59
Type:
FY139FMB
Construction:
One cylinder 4-stroke petrol engine
Valve steering:
1 overhead cam with rocker arms
Valve:
2 valve
Valve clearance, cold:
exhaust 0.05 mm - 0.08 mm
Pistion displacement:
49,5 cm
3
Bore:
ø 39 mm
Stroke:
41,4 mm
Compression ratio:
10:1
Lubrication system:
forced oil lubrication
Cooling:
air cooled
Maximum net power output:
2,0 kW at 7.000 1/min
Maximum net torque:
3,2 Nm at 4.300 1/min
Ignition system:
transistorized ignition system with electronic ignition control (CDI)
Spark plug:
NGK CR7 HSA electrode gap 0,7- 0,8 mm
Carburettor:
Mikuni type VM 12 101 6
Air-filter:
paper air-filter
Idle speed:
1.800 +/- 200 1/min
Typ of starter:
electric starter / kick starter
TECHNICAL DATA
Engine