4 GS 461
2. Specifications
2.1 Engine
GS 461
Displacement: 76.5 cm
3
Cylinder bore: 52.0 mm
Stroke: 36.0 mm
Engine power according to ISO 7293: 4.3 kW (5.9 HP)
at 9800 rpm
Idle speed: 2500 rpm
Clutch: Centrifugal clutch without
linings
Clutch engages at: 3500 rpm
Crankcase leakage test
at gauge pressure: 0.5 bar
under vacuum: 0.5 bar
2.2 Fuel system
Carburetor leakage test at
gauge pressure:
0.8 ba
r
Operation of tank vent at
gauge pressure: 0.5 bar
Fuel: as specified in instruction
manual
2.3 Ignition system
Air gap between ignition
module and fanwheel: 0.20 (+ 0.1/- 0.25) mm
Spark plug (suppressed): BOSCH WSR 6 F
NGK BPMR 7 A
Electrode gap: 0.5 mm
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