Echo CS-260TES Service Manual - page 3
SERVICE INFORMATION
CS-260TES
CS-270WES
3
1-2 Technical data
Model
CS-260TES
CS-270WES
Engine
Idling
speed
r/min
2800 - 3600
Operating speed
r/min
8500 - 9000
High speed (No load full throttle)*
r/min
11000 - 12500
Clutch engagement speed
r/min
4450 - 4750
Compression pressure
MPa (kgf/cm
2
) (psi)
0.85 (8.7) (124)
Ignition system
Spark plug gap
mm(in)
0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1500 r/min
kV
15
Secondary coil resistance
k
Ω
1.2 - 1.8
Pole shoe air gaps
mm (in)
0.30 - 0.40 (0.012 - 0.016)
Ignition timing
at 1500 r/min
°BTDC
25
at 3000 r/min
°BTDC
20
at 8000 r/min
°BTDC
36
at 12000 r/min
°BTDC
25
Carburettor
Idle adjust screw initial setting
turns in**
2 1/8
L mixture needle initial setting
turns back
1 5/8
H mixture needle initial setting
turns back
1 7/8
Test Pressure, minimum
MPa (kgf/cm
2
) (psi)
0.05(0.5)(7.0)
Metering lever height
mm(in)
1.65 (0.06) lower than diaphragm seat
Chain oil discharge volume at 7000 r/ min Adjustable: 1.5 - 13 (0.05 - 0.40)
mL/min(U.S.
fl
.oz./min)
(Factory set 7 mL/min)
BTDC: Before top dead centre.
*With 25cm guide bar and saw chain.
** Set idle speed screw to the point that its tip just contacts throttle plate before initial setting.