Document: - page 6 (Black)
Screen angle and frequency: 45.0000, 150.0000
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ENGINE INFORMATION
1. Carburetor
2. Stop switch
3. Rope handle
4. Fuel fill
5. Air cleaner
6. Choke
7. Spark plug
8. Fuel return hose
9. Fuel intake hose
10. Primer bulb
11. Engine Model Type Code
xxxxxx xxxx xxxxxxxx
12. Oil fill / dipstick
1
7
10
4
5
2
3
6
8
9
11
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GENERAL INFORMATION
ENGINE MODEL
This is a single cylinder, air-cooled engine. It is a low emissions en-
gine.
In the state of California, Model Series 21000 and 21100 engines
are certified by the California Air Resources Board to meet emis-
sions standards for 50 hours. Such certification does not grant the
purchaser, owner or operator of this engine any additional warran-
ties with respect to the performance or operational life of this en-
gine. This engine is warranted solely according to the product and
emissions warranties stated elsewhere in this manual.
MODEL SERIES 21000
Bore 1.575 in. (40 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 1.065 in. (27 mm). . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 2.074 cu. in. (34 cc). . . . . . . . . . . . . . . . . . .
MODEL SERIES 21100
Bore 1.575 in. (40 mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke 1.250 in. (31.75 mm). . . . . . . . . . . . . . . . . . . . . . . .
Displacement 2.44 cu. in. (40 cc). . . . . . . . . . . . . . . . . . . .
Note: 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).
TUNE-UP SPECIFICATIONS
Armature air gap 0.010 – 0.014 in. (0.25 – 0.36 mm). . .
Spark plug gap 0.025 in. (0.64 mm). . . . . . . . . . . . . . . . . .
Valve clearance with valve springs installed and piston 1/4 in.
(6 mm) past top dead center (check when engine is cold).
See Repair Manual.
Intake 0.002 – 0.004 in. (0.05 – 0.10 mm). . . . . . . . . . . . .
Exhaust 0.002 – 0.004 in. (0.05 – 0.10 mm). . . . . . . . . . .
