SERVICE INFORMATION
GT-220ES
SRM-220ES
2
1 SERVICE INFORMATION
1-1 Specifi cations
Model
GT-220ES
SRM-220ES (L) SRM-220ES (U)
Dimensions Length* mm(in) 1460 (57.4) 1760 (69.3)
Width mm(in) 320 (12.6) 345 (13.5) 655 (25.7)
Height mm(in) 575 (22.6) 320 (12.6) 420 (16.5)
Dry weight* kg(lb) 4.4 (9.7) 5.0 (11.1) 5.1 (11.2)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Rotation Anticlockwise as viewed from the output end
Displacement cm
3
(in
3
) 21.2 (1.294)
Bore mm(in) 32.2 (1.268)
Stroke mm(in) 26.0 (1.024)
Compression ratio 5.9
Carburettor Type
Rotary valve type: Diaphragm, horizontal-draught, with primer
Model ZAMA RB-K93
Venturi size-Throttle bore mm(in) 9.0 - 10.5 (0.35 - 0.41)
Ignition Type CDI (Capacitor discharge ignition) system
Variable Slope Timing (VST) : Slope advance ignition
system combined with electronic speed governor
Spark plug BPMR8Y
Exhaust Muffl er type 36 series : Spark arrestor muffl er
37 series : Spark arrestor muffl er with catalyst
Starter Type ES (effortless-start)
Rope diameter x length mm(in) 3.0 x 820 (0.12 x 32.2)
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/FD
Tank capacity L (U.S.fl .oz.) 0.4 (13.5)
Clutch Type Centrifugal, 2 - shoe slide
Handle Type Front D-loop
U-handle with
Rear
Integrated control
grip with cushion
integrated control grip
Drive shaft Type Flexible
Diameter - Length mm(in)
6.0 - 1330 (0.24 - 52.4)
6.0 - 1520 (0.24 - 59.8)
Housing OD -ID mm(in) 25 - 22 (0.98 - 0.87)
(Main pipe) Length mm(in)
1330 (52.4)
1500 (59.1)
Gear case Reduction ratio --- 1.36
Gear tooth --- Spiral bevel gear
Lubrication Lithium based grease
Cutter Type Nylon line head Metal blade
Fastener type, size mm Standard thread Left-hand thread nut, M10 x 1.25 pitch
3/8 inch - 24UNF
Cutting rotation
Clockwise as viewed
Anticlockwise as viewed from top
from top
OD: Outer diameter. ID: Inner diameter.
* Without shoulder harness and cutter head.
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