Shindaiwa X7502872300 manual Specifications, Emission Control Exhaust & Evaporative

Specifications

Model	AH254
Engine Type	4-cycle, vertical cylinder, air cooled
Engine Bore x Stroke	34 x 27 mm/1.3 x 1.1 in.
Engine Displacement	24.5cc/1.5 cu. in.
Unit Weight, Less Fuel	6.3 kg/14 lbs.
Unit Dimensions (LxWxH)	2360 x 225 x 235 mm / 92.9 x 8.9 x 9.3 in.
Fuel Tank Capacity	590 ml/20.3 oz..
Fuel/oil ratio	50:1 with *ISO-L-EGD or JASO FD class engine oil
Carburetor	Diaphragm type
Ignition	Fully electronic, program controlled
Spark Plug**	NGK CMR5H
Electrode Gap	0.6 mm/ .024 in.
Torque	16.7 - 18.6 N∙m / 148-165 in • lbf
Air Cleaner	Foam pre-filter; sealed felt main filter
Starting Method	Recoil Starter
Stopping Method	Slide switch, grounding type
Blade Length	567 mm/22.3 in
Clutch Type	Automatic, centrifugal clutch with bevel gear
Gear Type	Spur gears
Gear Lubrication	Lithium-based grease
Standard Equipment	Tool kit, blade scabbard.
Idle Speed	3,000 RPM
Clutch Engagement Speed	4,100 RPM
Wide Open Throttle Speed (W.O.T.)	10,500 RPM

Specifications are subject to change without notice.

Emission Control (Exhaust & Evaporative)

EPA 2010 and Later and/or C.A.R.B. TIER III

The emission control system for the engine is EM/TWC (Engine Modification and 3-way Catalyst) and for the fuel tank the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to California models only.

An Emission Control Label is located on the unit. (This is an EXAMPLE ONLY; information on label varies by en- gine FAMILY).

PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)

The 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual.

6