Honda UMC425 Owner's Manual page 63

Engine
MODEL
Engine model
Engine description code
Engine type
Displacement
Bore and Stroke
Engine Net power
(in accordance with SAE J1349*)
Engine max. Net torque
(in accordance with SAE J1349*)
Idle speed
Maximum corresponding
spindle speed
Cooling system
Ignition system
Oil capacity
Fuel tank capacity
Spark plug
*
The power rating of the engine indicated in this document is the net
power output tested on a production engine for the engine model and
measured in accordance with SAE J1349 at 7,000 rpm (Engine Net
Power) and at 5,500 rpm (Engine Max. Net Torque). Mass production
engines may vary from this value.
Actual power output for the engine installed in the final machine will
vary depending on numerous factors, including the operating speed of
the engine in application, environmental conditions, maintenance, and
other variables.
NOTE:
Specifications may vary according to the types, and are subject to
change without notice.
60
UMC435E
4-stroke, overhead cam, 1 cylinder
35.8 cm
39.0 × 30.0 mm (1.5 × 1.2 in)
1.0 kW (1.4 ps)/7,000 rpm
1.6 N·m (0.16 kgf·m, 1.2 lbf·ft)/5,500 rpm
3,100 ± 200 rpm
MIN. 10,000 rpm
Transistor magneto
0.10 L (0.11 US qt, 0.09 lmp qt)
0.63 L (0.166 US gal, 0.139 lmp gal)
CMR5H (NGK)
UMC435U
GX35T
GCAMT
3
(2.18 cu-in)
Forced air