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SERVICE INFORMATION
SRM-510ES
2
1 SERVICE INFORMATION
1-1 Speci
fi
cations
Model
SRM-510ES (L)
SRM-510ES (U)
Dimensions* Length
mm(in)
1860 (73.2)
Width
mm(in)
355
(14.0)
655
(25.8)
Height
mm(in)
324
(12.8)
460
(18.1)
Dry weight *
kg(lb)
8.5 (18.7)
8.8 (19.3)
Engine
Type
KIORITZ, air-cooled, two-stroke, single cylinder
Rotation
Anticlockwise as viewed from the output end
Displacement
cm
3
(in
3
) 51.7
(3.155)
Bore mm(in)
44.0
(1.732)
Stroke
mm(in)
34.0
(1.339)
Compression ratio
5.8
Carburettor Type
Rotary type : Diaphragm, horizontal-draught, with primer
†
Model
Walbro WYK-341
Venturi size -Throttle bore mm(in)
13.5 - 15.0 (0.531 - 0.591)
Metering diaphragm pressure
Lead pressure from inside of cleaner case
Ignition
Type
CDI (Capacitor discharge ignition) system
Digital magneto
Spark plug
RCJ-6Y, BPRM7A
Starter Type
ES
(effortless-start)
Rope diameter x length
mm(in)
3.8 x 1150 (0.15 x 45.3)
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.)
1.0 (33.8)
Clutch
Type
Centrifugal, 2 - shoe pivot
Handle Type
Front : Crescent loop with cushion grip
U-handle
Rear : Integrated control grip with cushion
with integratedcontrol grip
Drive shaft
Type
Solid, hollow type with serration (10-tooth)
Inner shaft: Diameter - Length
mm(in)
8 - 1588 (0.31 - 62.5)
Housing
OD -ID mm(in)
28 - 24 (1.10 -0.94)
(Main pipe)
Length mm(in)
1530 (60.2)
Gear case
Reduction ratio
1.33
Gear tooth
Spiral bevel gear
Lubrication
Lithium based grease or ECHO XTended Protection
TM
Lubricant
Cutter
Type
Nylon line cutter
3-tooth blade (255mm)
Pilot diameter
mm(in)
25.4 (1.0)
Fastener type, size
mm
Left-hand thread nut, M10 x 1.25 pitch
Cutting rotation
Anticlockwise as viewed from top
OD: Outer diameter.
ID: Inner diameter.
* Without shoulder harness and standard cutter.
†
Primer is on cleaner case.