SERVICE INFORMATION
GT-220ES
SRM-220ES
2
1 SERVICE INFORMATION
1-1 Speci
fi
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 Muf
fl
er type
36 series : Spark arrestor muf
fl
er
37 series : Spark arrestor muf
fl
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.
