Rato R210 - Page 34

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32
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2) TORQUE OF IMPORTANT BOLTS
Items
R100 R160/R180-3/R200/R210/R225
Specica-
tions
Torque
Valve
Specications
Torque Valve
N
·
m Kg
·
m N
·
m Kg
·
m
Connection-Rod Bolt M6×25 12 1.2 M6×1.25 (special) 13 1.3
Cylinder Head Bolt M8×55 32 3.2
M10×1.25 35 3.5
Flywheel Nut M12×1.5 55 5.5
M14×1.5 (special) 85 8.5
Lock Nut Of Rocker
Arm Shaft
M6×0.5 10 1.0
M6×0.75 10 1.0
Rocker Arm Stud M6×1 24 2.4
M8×1.25 (special) 24 2.4
Crankcase Bolt M6×25 11 1.1
M8×1.25 28 2.8
2. R270 R300 R390 R420 R440
1) MAIN SPECIFICATION
Model
Specication
R270 R300 R390 R420 R440
L×W×H (mm)
415×392×425/
465×392×425(Electric)
415×413×440/465×415×440(Electric)
Dry Weight (kg) 26
31/33
(Electric)
32/34(Electric)
Gasoline Engine Type 4-Stroke,OHV,Single Cylinder
Displacement(ml) 270 301 389 420 438
Compression Ratio 8.2:1 8.0:1 8.5:1 8.0:1
Bore × Stroke(mm) 77×58 80×60 88×64 90×66 92×66
Maximum Output
Power (kW/r/min)
5.6/3600 6.0/3600 7.6/3600 8.5/3600 9.8/3600
Maximum Torque
(N.m/r/min)
16.8/2500 18/2500 23/2500 25/2500 27/2500
Cooling System Forced Air-cooled
Ignition System Transistonized Magneto Ignition(TCI)
Spark Plug BP6ES(NGK)/F6RTC(NHSP)/F6TC/F7RTC/F7TC
Lubrication System Forced Splash
PTO Shaft Rotation Counterclockwise
SPECIFICATIONS