Echo PB-770H, Operator'S Manual

29

P

OWER

 B

LOWER

O

PERATOR

'

S

 M

ANUAL

MODEL ---------------------------------------------------- PB-770H, PB-770T

Length PB-770H ------------------------------------------ 375mm (14.8 in.) (w/o pipes)
Length PB-770T ------------------------------------------- 375mm (14.8 in.) (w/o pipes)
Width PB-770H ------------------------------------------- 535 mm (21.1 in.)
Width PB-770T -------------------------------------------- 490 mm (19.3 in.)
Height PB-770H ------------------------------------------ 475 mm (18.7 in.)
Height PB-770T ------------------------------------------- 475 mm (18.7 in.)
Weight (dry) PB-770H ----------------------------------- 10.0 kg (22.0 lb.) (w/o pipes)
Weight (dry) PB-770T ----------------------------------- 9.8 kg (21.6 lb.) (w/o pipes)
Engine Type ------------------------------------------------ Air  cooled, two-stroke, single cylinder gasoline engine
Displacement ---------------------------------------------- 63.3cc (3.86 cu. in.)
Bore --------------------------------------------------------- 48.0 mm (1.89 in.)
Stroke ------------------------------------------------------- 35.0 mm (1.38 in.)
Carburetor -------------------------------------------------- Walbro Diaphragm model w/purge bulb
Ignition System -------------------------------------------- Flywheel Magneto, capacitor discharge ignition type
Spark Plug -------------------------------------------------- NGK BPM8Y 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 ---------------------------------------- 2.02 lit. (68.3US fl. oz.)
Recoil Starter System ------------------------------------ Automatic Recoil Starter Centrifugal Type
Idle Speed -------------------------------------------------- 2,400 - 2,600  (RPM)
Wide Open Throttle Speed ------------------------------- 6,600 - 6,800  (RPM)
Maximum Air Speed  (Measured at pipe end) --------- 91.1m/sec  (204 mph)
Average Air Volume (Measured at pipe end) ---------- 21.7 m

3

/min. (765 cu. ft./min.)

Sound level at 50 ft. dB(A) scale per ANSI B175.2 -- 74 dB(A)

S

PECIFICATIONS