Echo PB-620ST User Manual

MODEL ---------------------------------------------------- PB-620ST
Length  ------------------------------------------------------ 325  mm (12.8 in.) 
Width -------------------------------------------------------- 475  mm  (18.7 in.) 
Height ------------------------------------------------------- 490  mm (19.3 in.)
Weight (dry) ------------------------------------------------ 9.9 kg (22.0 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Displacement ----------------------------------------------- 58.2 cc (3.55 cu. in.)
Bore ---------------------------------------------------------- 46.0 mm (1.81 in.)
Stroke -------------------------------------------------------- 35.0 mm (1.38 in.)
Carburetor--------------------------------------------------- Zama  w/purge bulb
Ignition System -------------------------------------------- Flywheel Magneto, capacitor discharge ignition type
Spark Plug -------------------------------------------------- NGK BPM-8Y Gap 0.65 mm (0.026 in.)
Exhaust System -------------------------------------------- Spark arrestor muffler or spark arrestor muffler with catalyst
Fuel ---------------------------------------------------------- Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio ---------------------------------------------- 50 : 1 Power Blend X 

TM

 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 ---------------------------------------- 1.9 lit. (64.3 US fl. oz.)
Recoil Starter System ------------------------------------- Automatic Recoil Starter Centrifugal Type
Idle Speed  -------------------------------------------------- 2,400 - 3,000  (RPM)
Wide Open Throttle Speed  ------------------------------- 7,300 - 7,600  (RPM)
Maximum Air Speed  (Measured at pipe end) --------- 82.7 m/sec  (185 mph)
Average Air Volume (Measured at pipe end) ---------- 15.0 m

3/

min. (530 cu. ft./min.)

Sound Level at 50 ft. dB(A) scale 
per ANSI B175.2 ------------------------------------------- 72 dB(A)