5
Specifications
Specifications are subject to change without notice.
Engine Name
M242
Engine Type
2-stroke, single cylinder, air cooled, gasoline engine
Dry Weight (less attachment)
4.4 kg / 9.8 lb.
Dimensions (L x H x W) mm
1034 x 245 x 248 mm / 40.7 x 9.65 x 9.76 in.
Bore x Stroke
33 x 28 mm (1.3 x 1.1 in.)
Displacement
23.9 cc (1.46 cu. in.)
Fuel/Oil Ratio
50:1 with *ISO-L-EGD or JASO FD class engine oil
Fuel Tank Capacity
690 ml (23.3 oz.)
Carburetor Type
Diaphragm-type carburetor
Ignition
One-piece electronic,
transistor-controlled
Spark Plug**
NGK BPMR8Y
Spark Plug Gap
0.6 mm (0.024 in)
Torque
16.7 - 18.6 N∙m (148-165 in • lbf)
Air Cleaner Type
Non-reversible foam filter element
Starting Method
Recoil Starter
Stopping Method
Slide switch
Transmission Type
Automatic, centrifugal clutch w/bevel gear
Engine Idle Speed
3,000 RPM
Clutch Engagement Speed
3,850 RPM
Wide Open Throttle Speed (W.O.T.) w/nylon line head
9,600 RPM
Wide Open Throttle Speed (W.O.T.) w/ blade
12,000 RPM
An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by en-
gine FAMILY).
PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)
The 50 or 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 proce-
dures 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 (engine modification) and, if the second to last character of the En
-
gine 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 are only applicable to fuel tanks.
