![background image](http://html1.mh-extra.com/html/echo/pb-620st/pb-620st_operators-manual_4105046024.webp)
24
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)
s
peCIfICatIons