ENGINE INFORMATION

MODEL SERIES 540000

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1

11

2

3

4

5

6

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1.Choke control

2.Breather/Breather tube

3.Spark plug (2 locations)

4.Engine Model label

Model Type Code

xxxxxx

xxxx xx

xxxxxxxx

5.Oil pressure sensor

6.Oil filter

7.Oil drain plug (2 locations)

8.Rotating screen

9.Carburetor cover (Removed)

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9

12

13

14

3

15

16

17

10. Carburetor

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11.Mechanical fuel pump

12.Air cleaner

13.Oil Fill

14.Dipstick

15.Regulator/Rectifier

16.Starter solenoid

17.Starter

18.Exhaust system/Muffler

19.Throttle control (2 locations)

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GENERAL INFORMATION

This is a twin cylinder, overhead valve (OHV), air-cooled engine. It is a low emissions engine.

In the state of California, Model Series 540000 engines are certified by the California Air Resources Board to meet emissions standards for 1000 hours. Such certification does not grant the purchaser, owner or operator of this engine any additional warranties with respect to the performance or operational life of this engine. This engine is warranted solely according to the product and emissions warranties stated elsewhere in this manual.

Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85.5 mm (3.36 in.) Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 mm (3.07 in.) Displacement . . . . . . . . . . . . . . . . . . . . . . . . . 895 cc (54.6 cu. in.)

Note: For practical operation, the horsepower loading should not exceed 85% of rated horsepower. Engine power will decrease 3-1/2% for each 1,000 feet (300 meters) above sea level and 1% for each 10° F (5.6° C) above 77° F (25° C). Engine will operate satisfactorily at an angle up to 25°.

TUNE-UP SPECIFICATIONS

MODEL SERIES 540000

Armature air gap . . . . . . . . .

0.005 – 0.008 in. (0.13 – 0.20 mm)

Spark plug gap . . . . . . . . . . .

. . . . . . . . . . . . . 0.020 in. (0.51 mm)

Valve clearance with valve springs installed and piston 1/4 in. (6 mm) past top dead center (check when engine is cold).

Intake . . . . . . . . . . . . . . . . . . .

0.004 – 0.006 in. (0.10 – 0.15 mm)

Exhaust . . . . . . . . . . . . . . . . . 0.004 – 0.006 in. (0.10 – 0.15 mm)

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