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Specications
Engine Name T254
Engine Type 4-cycle, vertical cylinder, air cooled
Dry Weight (Without guard and strap) 5.0 kg/11.0 lb.
Bore x Stroke 34 x 27 mm (1.3 x 1.1 in.)
Displacement 24.5 cc (1.5 cu. in.)
Fuel/Oil Ratio 50:1 with *ISO-L-EGD or JASO FD class engine oil
Fuel Tank Capacity 590 ml (20 oz.)
Carburetor Type Diaphragm-type carburetor
Ignition One-piece electronic, program-controlled
Spark Plug** NGK CMR5H
Spark Plug Gap 0.6 mm (0.024 in)
Torque 16.7 - 18.6 N∙m (148-165 in • lbf)
Air Cleaner Type Foam pre-lter; sealed felt main lter
Starting Method Recoil
Stopping Method Slide switch
Transmission Type Automatic, centrifugal clutch w/bevel gear
Engine Idle Speed 3,000 RPM
Clutch Engagement Speed 4,100 RPM
Wide Open Throttle Speed (W.O.T.) 10,500 RPM
Specications are subject to change without notice.
Assembly
Prior to Assembly
Before assembling, make sure you have all the components required for a complete unit and inspect unit and components
for any damage.
IMPORTANT!
The terms “left”, “left-hand”, and “LH”; “right”, “right-hand”, and “RH”; “front” and “rear” refer to directions as viewed by the
operator during normal operation.
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.
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 Modication 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.
Engine and shaft assembly ■
Cutting attachment shield ■
Cutting attachment ■
Kit containing cutting attachment shield, mounting ■
bracket and hardware, this owner’s/operator’s manual
and tool kit for routine maintenance. Tool kits vary by
model and may include a spark plug/screwdriver combi-
nation wrench, and a scraper.