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SRM-400U
Dimension L × W × H cm 186 × 70× 43 (73.2 in × 27.6 in × 16.9 in)
Mass kg 9.9 (21.8 lb): without shoulder harness and cutter head
Engine Type Air cooled two stroke single cylinder
Displacement mL (cm³) 42.7 (2.6 cu.in)
Maximum
revolution r/min 10,000
Carburetor Walbro diaphragm type WYK
Ignition Flywheel magneto: CDI (Capacitor Discharge Ignition)
system
Spark plug CHAMPION RCJ-6Y
Starter Recoil starter
Clutch Automatic centrifugal clutch
Fuel Mixing ratio 50 : 1 ratio with ECHO Power Blend X™, ISO-L- EGD
(ISO/CD 13738) and JASO 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-20 or E-85.
Tank capacity L 1.0 (33.8 US fl. oz.)
Drive shaft Cutter (Option) Nylon line cutter head
assembly Cutter Circular saw, 25 cm (10 in)
Cutter (Option) 8 cutter blade, 20 cm (8 in)
Gear housing 60 degree bevel gears, ratio 1 : 1.33 (Counterclockwise)
Lubrication Good quality lithium grease
Drive shaft High tensile solid steel, 5 bearings
Shield Metal shield mounted on the gear housing for nylon line
and metal blade applications.
NOMENCLATURE OF PARTS
TECHNICAL DATA
Spark plug
Decompression device
Muffler
Choke lever
Air cleaner cover
Starter handle
Fuel tank
Gear housing
Ignition switch
Drive shaft assembly
Shield
Shoulder harness
Throttle trigger
Grip
Part number 890177-51330
Part number 890317-49030
Technical data subject to change without notice.