9
2) SPECIFICATIONS & TECHNICAL DATA
Items
unit
Specifications
Type
—
Air Cooled
Bore x Stroke
mm
34x28
Displacement
cm
3
25.4
Effective Compression Ratio
8.4
Type (Walbro)
WT-645
Carburetor
Venturi (mm)
ø12.7
Air Cleaner
—
Starting
—
Electric Motor
Ignition
Type
Battery Ignition
Spark Plug
STD
Y82
Idle Speed
rpm
1800 (APC 18x8)
Max. Power
kW/rpm
NA
Max. Torque
N·m/rpm
NA
Fuel Consumption
g/kW·H
NA
Weight
kg
1.35 (
✽
)
(
✽
): Without Ignition System Specifications are subject to change without notice.
3) CARBURETOR
Items
Unit
Standard
Measuring Device
Metering Lever set
mm
1.65 ± 0.16
Vanier
MPa
0.13~0.23
Inlet Valve Opening Pressure
Leak Tester
kg/cm
2
1.3~2.3
MPa
0.07~0.17
Inlet Valve Closing Pressure
Leak Tester
kg/cm
2
0.7~1.7
4) TIGHTENING TORQUE
Standard
Items
Screw Size
Remarks
N·m
kg·cm
Carburetor
M5 (P=0.8)
3.4
35
Insulator
M5 (P=0.8)
4.4
45
Rotor
M8 (P=1.0)
12.7
130
Cylinder
M5 (P=0.8)
6.9
70
Crankcase
M5 (P=0.8)
5.9
60
Spark Plug
M10 (P=1.0)
7.8
80
Muffler
M5 (P=0.8)
8.8
90
Stud (hub)
M6 (P=1.0)
9.8
100
with Locktight glue
Nut, Propeller
M8 (P=1.25)
9.8
100