Echo SRM-350ES - Manual (Page 2)

SERVICE INFORMATION
SRM-330ES
SRM-350ES 2
1 SERVICE INFORMATION
1-1 Specifications
Model SRM-330ES (L) SRM-330ES (U) SRM-350ES (L) SRM-350ES (U )
Dimensions Length* mm(in) 1825 (71.9) 1830 (72.0) 1825 (71.9) 1830 (72.0)
Width mm(in) 320 (12.6) 670 (26.3) 320 (12.6) 670 (26.3)
Height mm(in) 275 (10.8) 473 (18.6) 275 (11.9) 473 (18.6)
Dry weight ** kg(lb) 7.1 (15.7) 7.2 (15.9) 7.1 (15.7) 7.2 (15.9)
Engine Type KIORITZ, air-cooled, two-stroke, single cylinder
Semi-automatic decompression
Rotation Anticlockwise as viewed from the output end
Displacement cm 3 (in 3 ) 30.5 (1.861) 34.0 (2.075)
Bore mm(in) 36.0 (1.417) 38.0 (1.496)
Stroke mm(in) 30.0 (1.181) 30.0 (1.181)
Compression ratio 6.9 : 1
Carburettor Type Rotary type : Diaphragm, horizontal-draught, with primer (purge pump)
Model Walbro WYJ-312A Walbro WYJ-373A
Venturi size-Throttle bore mm(in) 12.2 - 12.2 (0.48 - 0.48) 10.5 - 10.5 (0.41 - 0.41)
Ignition Type TCI (Transistor controlled ignition) system
in a single integrated piece
Spark plug BPMR7A
Starter Type ES (Effortless)- start
Rope diameter x length mm(in) 3.8 x 1000 (0.15 x 39.8)
Fuel Petrol Minimum 89 octane petrol (RON)
Two-stroke engine oil ISO-L-EGD (ISO/CD13738), JASO FC
Tank capacity L (U.S.fl.oz.) 0.84 (28.4)
Clutch Type Centrifugal, 2 - shoe pivot
Handle Type Front Crescent loop U-shaped Crescent loop U-shaped
w/cushion grip w/cushion grip
Rear Integrated control - - - Integrated control - - -
grip w/cushion grip w/cushion
Drive shaft Type Solid
Diameter - Length mm(in) 8 - 1590 (0.31 - 62.6)
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
Cutter Type Nylon line cutter, 3-tooth blade † , Others
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 cutter head. ** With standard cutter head, without shoulder harness.
† Install and use U-shaped handle when operating with steel blade.