Specifications; Emission Control - Shindaiwa M254 Owner's/Operator's Manual

Specifications

Engine Model
Dr y weight (Including attachments)
Engine type
Bore x stroke
Displacement
Fuel/oil ratio
Carburetor type
Fuel tank capacity
Ignition
Spark plug*
Electrode Gap
Torque
Air cleaner type
Starting method
Stopping method
Transmission type
Idle Speed
Clutch Engagement Speed
Wide Open Throttle Speed (W.O.T.)
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 (engine modification) and, if the second to last character of the Engine
Family on the Emission Control Information label (sample below) is "C", "K", or "T", the emission control system is EM and
TWC (3-way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions). Evaporative emissions
for California models may only be applicable to fuel tanks.
An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY; information on label varies by engine
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.
M254
4.5 kg / 9.9 lb.
4-cycle, vertical cylinder, air cooled
34 x 27 mm / 1.3 x 1.1 in.
24.5 cc / 1.5 cu. in.
50:1 with *ISO-L-EGD or JASO FD class engine oil*
Diaphragm-type
590 ml / 20.0 oz.
One-piece electronic, program contolled
NGK CMR5H
0.6 mm / .024 in.
16.7 - 18.6 N∙m / 148-165 in • lbf
Foam pre-filter; sealed felt main filter
Recoil
Slide switch
Automatic, centrifugal clutch w/bevel gear
2,900 RPM
4,100 RPM
9,600 RPM
5