Echo CS-5100

SERVICE INFORMATION
CS-4400
CS-5100
2
1 SERVICE INFORMATION
1-1 Specifications
Model CS-4400 CS-5100
Dimensions Length* mm(in) 398 (15.7)
Width mm(in) 252 (9.9)
Height mm(in) 272 (10.7)
Dry weight* kg(lb) 4.6 (10.1) 4.9 (10.8)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Clockwise as viewed from the output end
Displacement cm
3
(in
3
) 43.5 (2.654) 49.3 (3.008)
Bore mm(in) 43.0 (1.693) 45.0 (1.772)
Stroke mm(in) 30.0 (1.181) 31.0 (1.220)
Compression ratio 7.6 7.5
Carburettor Type Diaphragm horizontal-draught with auto-return choke
Model Walbro WT-416C ZAMA C1Q-K79
Venturi size-Throttle bore mm(in) 13.5 - 15.85 (0.532 - 0.624) 13.5 - 16 (0.532 - 0.630)
Ignition Type CDI (Capacitor discharge ignition) system
with electronic timing advancer
Spark plug RCJ-6Y
Starter Type Automatic rewind
Rope diameter x length mm(in) 3.5 x 1000 (0.14 x 39.4)
Fuel Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2 %)
Petrol Minimum 89 octane petrol (RON)
Two-stroke air cooled engine oil ISO-L-EGD (ISO/CD13738), JASO FC
Tank capacity L (U.S.fl.oz.) 0.6 (20.3)
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.) 0.28 (9.5)
Sprocket Type Spur Floating rim
Number of teeth 7 7
Pitch in 0.325 0.325
Cutting devices
Guide bar Type (CS-4400) --- 45RV58-325 38RV58-325
(CS-5100) 38RV58-325 45RV58-325 50RV58-325
Called length cm 38 45 50
Gauge in 0.058
Saw chain Number of drive links 56 64 72
Pitch in 0.325
Gauge in 0.058
* Without guide bar and saw chain.