SRM-266
SPECIFICATIONS
X7502028004
49
©
02/21
ECHO Incorporated
SPECIFICATIONS
MODEL
SRM-266
Length w/o cutter head
1810 mm (71.3 in.)
Width
250 mm (9.85 in.)
Height
340 mm (13.4 in.)
Weight (dry) w/o cutter head 5.56 kg (12.3 lb.)
Engine Type
Air cooled, two-stroke, single cylinder gasoline engine
Bore
34.0 mm (1.34 in.)
Stroke
28.0 mm (1.10 in.)
Displacement
25.4cc (1.55 cu. in.)
Exhaust
Spark arrestor muffler or spark arrestor muffler with
catalyst
Carburetor
Diaphragm w/purge pump
Ignition System
Flywheel magneto, capacitor discharge ignition type
Spark Plug
NGK BPMR-8Y (Gap 0.65 mm (0.026 in.)
Fuel
Mixed (Gasoline and Two-stroke Oil)
Gasoline/Oil Ratio
50:1
Gasoline
Use 89 Octane unleaded. Do not use fuel containing
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE. Do not use alternative fuels such as E-15 or E-
85.
Oil
ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345- FD,
two-stroke, air-cooled engine oil.
Fuel Tank Capacity
0.50 L (16.9 US fl. oz.)
Starter System
Automatic Rewind Starter
Clutch
Centrifugal Type
Vibration Isolated System
Rubber cushion on engine mount (heavy duty). Rubber
grip on front handle.
Operating Rod
25.0 mm aluminum Tube
Drive Shaft SRM-266)
6.35 mm (1/4 in.) flexible shaft
Gear Case Ratio
1:4
Rotating Direction
Counter Clockwise; viewed from top
Cutter Head
Speed Feed
®
Nylon line head, Line capacity 6 m (20 ft.)
Handle
Front - loop, Rear handle (w/o rubber)
Shoulder Harness
Optional
Idle Speed
2,900 RPM
Clutch Engagement Speed 3,900 RPM
Wide Open Throttle Speed
(W.O.T.)
9,500 RPM