Rato R80, Maintenance Manual, Page: 7 / 79

Part I Introduction
3
Cooling system Forced air cooling
Ignition system Breakerless transistorized coil ignition (TCI)
Spark plug BPR6ES(NGK), NHSP LD F7RTC, F7TC
Lubrication system Splash type
Power take-off shaft
direction
Counterclockwise
Model
Parameters
R420-V
L×W×H 465×415×440 mm
Net weight 28kg
Type of gasoline engine Four-stroke, overhead valve, single-cylinder
Displacement 420cm
3
Compression ratio 8.5
：
1
Cylinder diameter x
stroke
90×66mm
Maximum output power 9.5kw / 3600rpm
Maximum torque 28N.m / 2500rpm
Cooling system Forced air cooling
Ignition system Breakerless transistorized coil ignition (TCI)
Spark plug BPR6ES(NGK), NHSP LD F7RTC, F7TC
Lubrication system Splash type
Power take-off shaft
direction
Counterclockwise
1-3 Maintenance standards
1-3-1R80-V
Part Item Standard Service limit
Gasoline
engine
Maximum no-load speed
Cylinder pressure
3850rpm
≧ 0.9Mpa （ 1400rpm ）
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