SPECIFICATIONS HCS-2810 / 3810
40 X7702248300
© 09/19 ECHO Incorporated
Displacement 21.2 cc (1.29 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 BPMR8Y (Gap 0.65 mm [0.026 in.])
Fuel Mixed (Gasoline and Two-stroke Oil)
Fuel/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 0.37 L (12.5 US fl. oz.)
Starter System Automatic Recoil Starter, centrifugal type
Clutch Centrifugal Type
Gear Case Ratio 4.6:1
Cutter Double Reciprocating Blade, Single Sided
Length
Blade 710 mm (28 in.) 955 mm (37.6 in.)
Cutting 589 mm (23.2 in.) 834 mm (32.8 in.)
Pitch 35 mm (1.38 in.)
Height 24 mm (0.94 in.)
Maximum Diameter Cut
Soft Material 25.4 mm (1 in.)
Woody Material 13 mm (1/2 in.)
Idle Speed 3,300 RPM
Clutch Engagement
Speed
4,700 RPM
Wide Open Throttle
Speed (W.O.T.)
10,740 RPM
MODEL HCS-2810 HCS-3810
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