Tune-Up Specifications; General Information - Briggs & Stratton 290000 Operating & Maintenance Instructions

ENGINE INFORMATION
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1. Air cleaner
2. Carburetor
3. Rewind starter (if equipped)
4. Blower housing
5. Oil filter (if equipped)
6. Spark plug wire
7. Oil drain plug
8. Oil fill/Dipstick

GENERAL INFORMATION

ENGINE MODEL
This is a twin cylinder, overhead valve (OHV), air-cooled
engine. It is a low emissions engine.
In the state of California, Model Series 290000, 300000,
350000 and 380000 engines are certified by the California
Air Resources Board to meet emissions standards for 250
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.

TUNE-UP SPECIFICATIONS

Armature air gap . . . 0.008 – 0.012 in. (0.20 – 0.30 mm)
Spark plug gap . . . . . . . . . . . . . . . . . .
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 P/N 272144.
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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9. Rotating screen
10. Emission label
11. Engine
12. Fuel pump
13. Exhaust manifold
14. 12V electric starter
0.030 in. (0.76 mm)
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Model Type
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MODEL SERIES 290000 and 300000
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . . .
MODEL SERIES 350000
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . . .
MODEL SERIES 380000
Bore . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement . . . . . . . . . . . . . . . . . . .
Note: For practical operation, the horsepower loading should
not exceed 85% of rated horsepower. Engine power will de-
crease 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 15°.
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Code
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2.68 in. (68 mm)
2.60 in. (66 mm)
29.3 cu. in. (480 cc)
2.83 in. (72 mm)
2.76 in. (70 mm)
34.7 cu. in. (570 cc)
2.97 in. (75.5 mm)
2.76 in. (70 mm)
38.2 cu. in. (627 cc)