Cobra Y173V - Specifications; Service Limit

2
1. INTRODUCTION
1-2 Specifications
MODEL
ITEM
Y173V
L×W×H(not including crankshaft
output terminal)
415×345×280(mm)
Dry Weight
13.45Kg
Engine Type
Single Cylinder Horizontal,4-Stroke, OHV
Displacement
173cc
Bore × Stroke
70mm×45mm
Theoretical Maximum Power
3.6kW/3,600r/min
Recommended Using Power
3.0Kw /2800r/min
Maximum Torque
10N·m/2,800r/min
Fuel Consumption
395g/kW·h
Cooling System
Forced Air
Ignition System
Capacitance Discharge Type
PTO Shaft Rotation
Vertical Shaft Output
1-3 Service Limit
UNIT：mm
PARTS
ITEM
STANDARD
SERVICE
LIMIT
Engine
Maximum Speed (No Load)
2850±100rpm
--
Idle Speed
2100±100rpm
--
Cylinder Compression
1.40Mpa/1200rpm
--
Cylinder Head
Sleeve I.D
70
70.165
Cylinder Head
Warpage
--
0.10
Piston
Skirt O.D.
69.980
69.865
Piston–to-Cylinder Clearance
0.020-0.050
0.10
Piston Pin Bore I.D.
18.002-18.010
18.040
Piston Pin O.D
17.994-17.998
17.954
Piston Pin-to-Piston Pin Bore Clearance
0.004-0.016
0.08
Piston Rings
Ring Side Clearance： second
0.030-0.065
0.15
Ring Enc Gap: second
0.2-0.4
1.0
Ring Width： second
1.497-1.499
1.397