Specifications; Emission Control - Shindaiwa AH254 Owner's/Operator's Manual

Specifications

Model
Engine Type
Engine Bore x Stroke
Engine Displacement
Unit Weight, Less Fuel
Unit Dimensions (LxWxH)
Fuel Tank Capacity
Fuel/oil ratio
Carburetor
Ignition
Spark Plug**
Electrode Gap
Torque
Air Cleaner
Starting Method
Stopping Method
Blade Length
Clutch Type
Gear Type
Gear Lubrication
Standard Equipment
Idle Speed
Clutch Engagement Speed
Wide Open Throttle Speed (W.O.T.)
Specifications are subject to change without notice.
This spark ignition system complies with the Canadian standard ICES-002.
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
4-cycle, vertical cylinder, air cooled
34 x 27 mm/1.3 x 1.1 in.
2360 x 225 x 235 mm / 92.9 x 8.9 x 9.3 in.
50:1 with *ISO-L-EGD or JASO FD class engine oil
Fully electronic, program controlled
16.7 - 18.6 N∙m / 148-165 in • lbf
Foam pre-filter; sealed felt main filter
Slide switch, grounding type
Automatic, centrifugal clutch with bevel gear
IMPORTAnT!
AH254
24.5cc/1.5 cu. in.
6.3 kg/14 lbs.
590 ml/20.3 oz..
Diaphragm type
NGK CMR5H
0.6 mm/ .024 in.
Recoil Starter
567 mm/22.3 in
Spur gears
Lithium-based grease
Tool kit, blade cover.
3,000 RPM
4,100 RPM
10,500 RPM