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MODEL ---------------------------------------------------- SRM-225
Length w/o cutter head ------------------------------------ 1793mm (70.6 in.)
Width -------------------------------------------------------- 251 mm (9.88 in.)
Height ------------------------------------------------------- 328 mm (12.9 in.)
Weight (dry) w/o Cutter Head ---------------------------- 5.5 kg (12.1 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Bore ---------------------------------------------------------- 32.2 mm (1.27 in.)
Stroke -------------------------------------------------------- 26.0 mm (1.02 in.)
Displacement ----------------------------------------------- 21.2 cc (1.29 cu. in.)
Exhaust ------------------------------------------------------ Spark arrestor mufer or spark arrestor mufer with catalyst
Carburetor--------------------------------------------------- Zama diaphragm model w/purge
Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge
Spark Plug -------------------------------------------------- NGK BPM-8Y (Gap 0.65 mm (0.026 in.)
Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ---------------------------------------------- 50 : 1 Power Blend X™ ISO-L-EGD (ISO/CD 13738) and
J.A.S.O. M345- FC/FD, two-stroke, air-cooled engine oil.
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 ------------------------------------------------------------ Power Blend X
TM
Premium Universal 2-Stroke Oil
Fuel Tank Capacity ---------------------------------------- 0.44 lit. (14.9 US . 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 diameter aluminum Tube
Drive Shaft ------------------------------------------------- 6.35 mm (1/4 in.) exible shaft
Gear Case Ratio -------------------------------------------- 1.4:1 Reduction
Rotating Direction ----------------------------------------- Counter Clockwise; viewed from top
Cutter Head ------------------------------------------------- Nylon line head (2-line) with .095 Crossre™ Line capacity 7m
(24 ft.)
Handle ------------------------------------------------------- Front - Loop, Rear Handle (w/o rubber)
Shoulder Harness ------------------------------------------ Optional
Idle Speed --------------------------------------------------- 2,500 - 3,000 RPM
Clutch Engagement Speed -------------------------------- 3,850 RPM
Wide Open Throttle Speed (W.O.T.) ------------------- 7,600 - 8,700 RPM