data sheet

2000

EH025 (Model)

(Year)

Index

l Specifications Model

EH025

Shaft axis

Horizontal

Cycle

4

Type of cooling system

Forced air cooling

Valve arrangement

Over head valve

Number of cylinders

1

Cylinder angle

Vertical single cylinder

Bore

34 mm (1.34")

Stroke

27 mm (1.06")

Displacement

24.5 cm3 (1.49 cu·in)

Compression ratio

8.3

Reduction ratio

1:1

Rotation (Facing PTO shaft)

Counter clockwise

Max.Power

0.81 kW (1.1 HP)/7000 rpm

Continuous rated power

0.55 kW (0.75 HP)/7000 rpm

Max.Toruque

1.18 N·m (0.12 kg·m)/5000

Method of ignition

Noncontact magneto type

Lubrication type

Forced lubrication

Fuel feed

Pressure feed

Carburetor type

Side draft, Diaphragm type

Starting system

Recoil starter

Air cleaner type

Dry type

Oil sensor

Not applicable

Spark plug

NGK CMR6A

Dimensions

Length

170 mm (6.69")

Width

213 mm (8.39")

Height

225 mm (8.86")

Dry weight

2.8 kg (6.17 lbs)

Type of fuel

Automobile unleaded gasoline

Type of lublicant

Automobile oil SAE 10W-30, class SF or higher

Fuel tank capacity

0.5 L (0.13 U.S.gal.)

Oil capacity

Max.

80 cc (0.08 qt.)

Min.

30 cc (0.03 qt.)

Noise level

No load

73.1 dBA

[Full load, LES-1107]

Rated load

91.0 dBA

Fuel consumption Standard speed set - No load

408 g/kW·hr (304 g/HP·hr) [at continous rated power] High

11000 ±1000 rpm (No control)

Low

3000 ±100 rpm

General information - data sheet - EH025 - 2000.Dec. - FHI

Index

l Dimensions

31˚ 66 ±0.3 33 ±0.15

(2.61") (2.59")

225(8.86") 90(3.54")

60(2.36")

27.5 ±0.15 (1.09")(1.08")

(1.31") (1.29")

27.5 ±0.15 (1.09") (1.08")

55 ±0.15 (2.17") (2.16")

23")

PCD ø82(3.

87(3.43")

86.9(3.42") 213(8.39")

General information - data sheet - EH025 - 2000.Dec. - FHI

59(2.32") 170(6.70")

data sheet

HP kW

MAXIMUM TORQUE

1.0

N·m

kgf·m

1.2

0.12

1.0

0.10

0.8

0.08

0.6

0.06

MAXIMUM HORSEPOWER (NET)

1.2

TORQUE

Index

l Performance curve

0.8 1.0

OUTPUT

0.8 0.6 0.6

COUNTINUOUS RATED HP

0.4

RECOMMENDED HORSEPOWER RANGE

0.4 0.2 0.2

4000

5000

6000

8000

r.p.m.

+0.046 0

(2.600") (2.598")

7000

ø66H8

±0.15

(2.15") (2.14")

REVOLUTION

ø54.5

10.3(0.41") Clutch shoe width

16(0.63") 5.7(0.22")

81.2(3.20")

66 ±0.3 33 ±0.15

(2.61") (2.59")

(1.31") (1.29")

60(2.36")

Recommended clutch dia.

0

General information - data sheet - EH025 - 2000.Dec. - FHI

Index

l Service data Ignition timing Compression

BTDC 25˚±2˚/7000 rpm 4.6 kg/cm2 (65 PSI)

Valve clearance (at room temp.) Ignition coil gap Spark plug gap Governor spring set

In, Ex: 0.15 mm (0.006") 0.3 mm (0.012") 0.8 mm (0.032") ---

#1

l Operation Max.Operating angle

Operating temperature

PTO side Starter side Carburetor side down Carburetor side up Operation Min. to Max. Strage Min.

30˚ (Continuos), 90˚ (Momentary) 30˚ (Continuos), 90˚ (Momentary) 30˚ (Continuos), 90˚ (Momentary) 30˚ (Continuos), 90˚ (Momentary) 5˚~ 40˚C (41˚~104˚F) ---

l Application matching (Allowable criteria) Max.Temperature (Absolute)

Cooling air Intake air Oil Fuel in caburetor bowl

Allowable vibration Allowable side load Allowable bending moment Oil consumption Allowable Max. back pressure Exhaust emission CO [2001MY-EPA] HC NOx Governor performance Intermitent Steady state

40˚C 43˚C 135˚C ---

#2

No resonance point in any operating conditions Amplitude less than 1mm on the fuel tank -----

#3

3 gr/ps·hr 31 mmHg 296 g/bhp·hr 9.5 g/bhp·hr 1.7 g/bhp·hr -------

#1~4: Explain the instrumentation points and methods with another sheet.

l Fuel consumption rpm

3000

5000

6000

7000

Full load

---

0.34

0.44

0.50

1/2

---

---

---

---

No load

0.12

0.26

0.31

0.37

load

(L/hour)

General information - data sheet - EH025 - 2000.Dec. - FHI

#4