SERVICE INFORMATION
PB-760LN T/H
3
1-2 Technical data
Model
PB-760LN T
PB-760LN H
Engine
Idling speed*
RPM
2,500 +/- 200
Wide open throttle speed*
RPM
5,800 - 6,200
Compression pressure
MPa (kgf/cm
2
) (psi)
0.81 (8.3) (118)
Ignition system
Spark plug gap
mm(in)
0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1,500 RPM kV
22
Primary coil resistance
300 - 350
Secondary coil resistance
k
2.5 - 2.9
Pole shoe air gaps
mm(in)
0.3 - 0.4 (0.012 - 0.016)
Ignition timing
at 3,000 RPM
°BTDC
16
at 6,000 RPM
°BTDC
23
PET-9000
Parameter 1
307
Parameter 2
00
Carburetor
Venturi size
mm(in)
12.2 (0.5)
Throttle bore
mm(in)
12.2 (0.5)
Idle adjust screw initial setting
turns in**
5/8
Idle mixture needle initial setting
turns in***
6 1/2
Hi speed mixture needle initial setting turns out
3 5/8
Test Pressure, minimum
MPa (kgf/cm
2
) (psi)
0.05 (0.5) (7.0)
Metering lever height
mm(in)
1.5 (0.06) lower than diaphragm seat
BTDC: Before top dead center. *With all blower pipes.
** Set idle adjust screw to the point that its tip just contacts throttle plate before initial setting.
*** Screw in idle mixture needle from initial thread engagement (at the point that the clicking sound is heard).
1-3 Torque limits
Descriptions
Size
kgfcm
Nm
inlbf
Starter Starter pawl assembly
M 10
80 - 100
8 - 10
70 - 90
system Starter case
M 5*
25 - 45
2.5 - 4.5
22 - 40
Ignition Flywheel
M 10
200 - 240
20 - 24
175 - 210
system C.D.I module
M 5
60 - 90
6 - 9
50 - 80
Fuel
Spark plug
M 14
130 - 170
13 - 17
115 - 150
system Carburetor
M 5
30 - 40
3 - 4
26 - 35
Intake bellows
M 5*
60 - 90
6 - 9
50 - 80
Fuel tank
M 5*
20 - 40
2 - 4
17 - 35
Engine Crankcase
M 5
70 - 110
7 - 11
60 - 95
Cylinder
M 5
70 - 110
7 - 11
60 - 95
Engine plate
M 5
20 - 30
2 - 3
17 - 26
Engine mount
M 6*
130 - 180
13 - 18
115 - 160
Cylinder cover
M 5*
20 - 30
2 - 3
17 - 26
Engine cover
Crankcase side
M 5*
25 - 45
2.5 - 4.5
22 - 40
Fan case side
M 5
30 - 45
3 - 4.5
26 - 35
Cleaner case side
M 5
35 - 55
3.5 - 5.5
30 - 48
