GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
11
SPECIFICATIONS
* Install and use U-Handle when operating any model with blade.
MODEL -----------------------------------------------------SRM-311, SRM-311S, SRM-311U
Length w/o Cutter Head-----------------------------------1820 mm (71.7 in.)
Width--------------------------------------------------------250 mm (9.8 in.)
Height ------------------------------------------------------- 260 mm (10.2 in.)
Weight (dry) w/o Cutter Head SRM-311 --------------- 6.0 kg (13.2 lb.)
Weight (dry) w/o Cutter Head SRM-311S -------------- 6.1 kg (13.4 lb.)
Weight (dry) w/o Cutter Head SRM-311U ------------- 6.5 kg (14.3 lb.)
Engine Type ------------------------------------------------Air cooled, two-stroke, single cylinder gasoline engine
Bore ----------------------------------------------------------36.0 mm (1.42 in.)
Stroke-------------------------------------------------------- 30.0 mm (1.18 in.)
Displacement -----------------------------------------------30.5 ml (1.86 cu. in.)
Exhaust ------------------------------------------------------Spark Arrestor Muffler w/catalyst
Carburetor -------------------------------------------------- Walbro diaphragm model w/purge pump
Ignition System -------------------------------------------- Flywheel magneto, capacitor discharge (CDI)
Spark Plug --------------------------------------------------NGK BPMR-8Y, (Gap 0.65 mm (0.026 in.)
Fuel ----------------------------------------------------------Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ----------------------------------------------- 50:1 two-stroke air cooled engine oil
Gasoline ----------------------------------------------------- 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
more than 10% ethyl alcohol or 15% MTBE.
Oil ------------------------------------------------------------Power Blend
TM
Premium Universal 2-Stroke Oil
Fuel Tank Capacity ---------------------------------------- 0.9 lit. (30.4 US fl. oz.)
Starter System ---------------------------------------------- Automatic Recoil Starter
Clutch ------------------------------------------------------- Centrifugal Type
Drive Shaft SRM-311/311U -------------------------------1/4 in. Flex Shaft
Drive Shaft SRM-311S ------------------------------------- 7mm Spline Steel Shaft
Rotating Direction ----------------------------------------- Counter Clockwise viewed from top
Cutter Head SRM-311/311S ------------------------------- Semi Auto Nylon line head (2-line)
Cutter Head SRM-311U ----------------------------------- Blade Capable
Handles* SRM-311/311S ----------------------------------Front-Loop, Right Grip
Handles* SRM-311U -------------------------------------- U-Handle
U-Handle SRM-311/311S ----------------------------------Optional kit
U-Handle SRM-311U --------------------------------------Standard
Shoulder Harness SRM-311/311S ------------------------Standard Shoulder Harness
Shoulder Harness SRM-311U ---------------------------- Standard Shoulder Harness w/hip pad
Idle Speed--------------------------------------------------- 2500 - 3300 RPM
Wide Open Throttle Speed (W.O.T.)
with Nylon Line Head -------------------------------------9000 - 11000 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ------- 9500 - 11500 RPM
IMPORTANT
This spark ignition system complies with Canadian ICES-002
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