Echo CS-300 Specifications

Echo CS-300 Specifications

The Echo CS-300 chainsaw had a short production run from 2002 to 2003, and as a result, it wasn’t sold as extensively compared to some other Echo chainsaw models. However, it still holds a special place in the hearts of chainsaw collectors for its previous dependable performance and user-friendly design. As we delve into its specifications and features, we can’t help but reminisce about this timeless piece of machinery.


Manufactured byEcho (Kioritz Corporation)
ModelCS-300, also CS-301 carburetor version
Year Introduced2002
Year Discontinued2003
Engine Displacement30.1 cc (1.8 cu. in.)
Number of CylindersAir cooled, two-stroke, single cylinder gasoline engine
Cylinder Bore37 mm (1.457 in.)
Piston Stroke28 mm (1.102 in.)
Cylinder TypeAluminum with chrome plated bore
Intake MethodPiston ported
Weight3.2 kg (7.1 lbs.) powerhead only
Handlebar SystemAnti-vibration, top handle type
Chain BrakeInertia activated
ClutchCentrifugal, 3 metal shoes, engages at 4,100 to 4,300 rpm
Drive TypeDirect
ConstructionDie cast magnesium, injection molded polymer
Magneto TypeCDI electronic
CarburetorWalbro WT-589-1
Major Repair KitK20-WAT
Minor Repair KitD10-WAT
Air Filter SystemCellulose fiber element
Starter TypeAutomatic rewind
Oil PumpAutomatic, gear driven
Maximum Engine RPM10,500 to 11,500
Idle RPM2,700 to 3,300
Ignition TimingFixed
Breaker Point SettingNone, replacement cord is 3 mm X 850 mm
Flywheel/Coil Air GapN/A
Spark Plug TypeNGK BPMR8Y
Spark Plug Gap0.6 to 0.8 mm (0.024 to 0.026 in.)
Crankshaft Main BearingsBall 6201
Fuel Tank Capacity250 ml (8.5 fl oz.)
Fuel Oil Ratio50:1
Recommended Fuel Octane89 regular automotive. Aspen2 pre-mixed alkylate fuel is best at 93 octane, no ethanol, has very long shelf life
Mix Oil SpecificationEcho two cycle. ISO-L-EDG. Jaso M345/FC, FD Aspen Synthetic mix oil is best
Chain Pitch3/8 in. low profile
Chain TypeOregon 91
Bar Mount Pattern03 link
Shortest Guide Bar Supplied30 cm (12 in.)
Longest Guide Bar Supplied40 cm (16 in.)
Colour SchemeGrey with Orange chainbrake lever
Echo CS-300 Chainsaw Specs


  • The Echo CS-300 is a chainsaw designed for top-handle use and has a anti-vibration handlebar system to minimize fatigue and increase control.
  • It was manufactured by Echo (Kioritz Corporation) in Yokosuka, Morioka Japan and was introduced in 2002 and discontinued in 2003.
  • The chainsaw is powered by a 30.1 cc (1.8 cu. in.) air-cooled, two-stroke, single-cylinder gasoline engine with a chrome-plated aluminum bore.
  • It has a centrifugal clutch with three metal shoes that engages at 4,100 to 4,300 rpm and a direct drive type.
  • The chainsaw features a CDI electronic magneto type, Walbro WT-589-1 carburetor, and an automatic rewind starter type.
  • It has an automatic gear-driven oil pump and a cellulose fiber air filter system.
  • The Echo CS-300 has a maximum engine RPM of 10,500 to 11,500 and an idle RPM of 2,700 to 3,300.
  • The chainsaw has a fuel tank capacity of 250 ml (8.5 fl oz.) and requires a fuel oil ratio of 50:1.
  • The chainsaw uses a 3/8 inch low profile chain pitch and an Oregon 91 chain type. It has a bar mount pattern of 03 link.
  • The shortest guide bar supplied with the chainsaw is 30 cm (12 in.) and the longest is 40 cm (16 in.).
  • The chainsaw is grey in color with an orange chain brake lever.


In conclusion, the Echo CS-300 chainsaw was a reliable and easy-to-use machine that was manufactured for a short period of time from 2002 to 2003. Despite its brief production run, it remains a popular choice among chainsaw enthusiasts for its dependable performance and user-friendly features. Its lightweight construction, anti-vibration handlebar system, and automatic oil pump are just a few of the features that made it stand out from other chainsaws of its time. While it may no longer be in production, its legacy lives on and it continues to be a beloved classic among chainsaw enthusiasts.

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