SERVICE INFORMATION
CS-2510TES
250Ts, 250TCs
2
1 SERVICE INFORMATION
1-1 Specifi cations
Dimensions Length* mm(in) 243 (9.57)
Width mm(in) 201 (7.91)
Height mm(in) 196 (7.72)
Dry weight* kg(lb) 2.3 (5.1)
Engine Type YAMABIKO, air-cooled, two-stroke, single cylinder
Rotation Clockwise as viewed from the output end
Displacement cm
3
(in
3
) 25.0 (1.525)
Bore mm(in) 35.0 (1.378)
Stroke mm(in) 26.0 (1.024)
Compression ratio 7.9
Carburetor Type Diaphragm horizontal-draught with separated primer
Model
Walbro WT-1153 (CS-2510TES)
WT-1155 (250TS, 250TCS)
with Large D-shaped mixture needles
Venturi size-Throttle bore mm(in) 11.11-14.3 (0.437-0.563)
Ignition Type
CDI (Capacitor discharge ignition) system
Digital magneto
Spark plug CMR7H
Starter Type ES (effortless)-start / S(Soft)-start
Rope diameter x length mm(in) 3.0 x 720 (0.12 x 28.3)
Fuel Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2 %)
Petrol Minimum 89 octane petrol
Two-stroke air cooled engine oi
l
ISO-L-EGD (ISO/CD13738), JASO FC/FD
Tank capacity L (UK.fl .oz.) 0.19 (6.7)
Exhaust Muffl er type Spark arrester muffl er with catalyst
Clutch Type Centrifugal type, 3-shoe slide with 3-tension spring
Guide bar / Saw chain lubrication type Adjustable automatic oil pump
Oil Tank capacity L (UK.fl .oz.) 0.14 (4.9)
Auto oiler Type Clutch related type
Sprocket Type Spur
Number of teeth 6 (Sprocket nose bar), 8 (Carving bar)
Pitch in 3/8 (Sprocket nose bar), 1/4 (Carving bar)
Spike Option (Parts number: P200-000150)
* Without guide bar and saw chain.