SERVICE INFORMATION
CS-260TES
CS-270WES
2
1 SERVICE INFORMATION
1-1 Specifi cations
Model CS-260TES CS-270WES
Dimensions Length* mm(in) 257 (10.1) 380 (15.0)
Width mm(in) 219 (8.6) 220 (8.7)
Height mm(in) 210 (8.3) 230 (9.1)
Dry weight* kg(lb) 2.9 (6.3) 3.1 (6.8)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Clockwise as viewed from the output end
Displacement cm
3
(in
3
) 26.9 (1.641)
Bore mm(in) 35 (1.378)
Stroke mm(in) 28 (1.102)
Compression ratio 6.4
Carburettor Type Diaphragm horizontal-draught with auto-return choke
Model (Walbro) WT-843 WT-845
Venturi size-Throttle bore mm(in)
9.53 - 14.3 (0.375 - 0.563)
Ignition Type Digital Magneto : CDI system
Spark plug BPMR-7A
Starter Type ES (Effortless)-start
Rope diameter x length mm(in)
3.5 x 750 (0.14 x 29.5)
Fuel Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2 %)
Petrol Minimum 89 octane petrol (RON)
Two-stroke air cooled engine oi
l
ISO-L-EGD (ISO/CD13738), JASO FC
Tank capacity L (U.S.fl .oz.) 0.24 (8.1)
Clutch Type Centrifugal, 3-shoe slide with 3-tension spring
Guide bar / Saw chain lubrication type Automatic with volume adjuster
Oil Tank capacity L (U.S.fl .oz.) 0.16 (5.4)
Auto oiler Type clutch related type
Sprocket Type Spur
Number of teeth 6 (Sproket nose bar), 8 (for Carving bar)
Pitch in 3/8 (Sproket nose bar), 1/4 (for Carving bar)
Cutting devices Sproket nose bar Carving
Guide bar Type 20RC50-3/8 25RC50S-3/8 30RC50M-3/8 25C50
Called length cm 20 25 30 25
Gauge in 0.050
Saw chain Number of drive link 35 40 47 60
Pitch in 3/8 1/4
Gauge in 0.050
* Without guide bar and saw chain.
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