Inspect Muffler And Spark Arrester - Figure 8 | Storage |
WARNING
Running engines produce heat. Engine parts, especially muffler, become extremely hot.
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| Severe thermal burns can occur on contact. |
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| When Storing Gasoline Or Equipment With Fuel In Tank | ||||||
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| Combustible debris, such as leaves, grass, brush, etc. can catch fire. | ||||||||||
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| • Store away from furnaces, stoves, water heaters or other appliances that have | ||||||||||
| • Allow muffler, engine cylinder and fins to cool before touching. | pilot lights or other ignition sources because they can ignite gasoline vapors. | |||||||||||
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| • Remove accumulated debris from muffler area and cylinder area. | Fuel System |
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| • It is a violation of California Public Resource Code, Section 4442, to use or |
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| Fuel can become stale when stored over 30 days. Stale fuel causes acid a d gum | ||||||||||||
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| operate the engine on any | |||||||||||
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| deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh, | |||||||||||
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| unless the exhaust system is equipped with a spark arrester, as defined in | |||||||||||
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| use Briggs & Stratton FRESH START® fuel stabilizer, available as a liquid additive or a | |||||||||||
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| Section 4442, maintained in effective working order. Other states or federal | |||||||||||
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| drip concentrate cartridge. |
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| jurisdictions may have similar laws. Contact the original equipment |
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| There is no need to drain gasoline from the eng ne f a fuel stabilizer is added according | |||||||||||
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| manufacturer, retailer, or dealer to obtain a spark arrester designed for the | |||||||||||
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| exhaust system installed on this engine. |
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| to instructions. Run the engine for 2 minutes to c rculate the stabilizer throughout the fuel | |||||
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| system. The engine and fuel can then be s ored up | 24 m nths. | |||
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| If gasoline in the engine has not been | rea ed w h a fuel stab lizer, it must be drained into | |||
Inspect the muffler (A, Figure 8) for cracks, corrosion, or other damage. Remove the | an approved container. Run the engine un l s ps fr | m lack f fuel. The use of a fuel | |||||||||||
| stabilizer in the storage container is re ommended o ma nta n freshness. | |||||||||||||
muffler deflector (B), if equipped, and inspect for damage or carbon blockage. If | |||||||||||||
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replacement parts are required, make sure to use only original equipment replacement | Engine Oil |
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| parts. |
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| While the engine is still warm, hange the engine oil. |
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| WARNING: Replacement parts must be the same and installed in the |
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| same position as the original parts or fire could result. |
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| Troubleshooting |
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| Need Assistance? Go to BRIGGSandSTRATTON.COM or call | ||||
Air Filter |
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This engine is not equipped with an air filter. DO NOT use this engine for anything |
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| other than snow removal. |
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| S ecifications |
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| Engine Specifications |
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How To Change The Oil - Figure 2 | 3 |
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| Model | 90000 |
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Used oil is a hazardous waste product and must be disposed of prop rly. Do not discard | Displacement |
| 9.02 ci (148 cc) | ||||||||||
with household waste. Check with your local authorities, service center, or al r for safe | Bore |
| 2.562 in (65.08 mm) | ||||||||||
| disposal/recycling facilities. |
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| Stroke |
| 1.750 in (44.45 mm) | ||
Remove Oil |
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| Oil Capacity |
| 18 | |||||
1. | With engine off but still warm, disconnect the spa k plug wi e (A, Figure 9) and keep |
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| it away from the spark plug. |
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| Reproduction | ||||||||
2. | Remove the oil drain plug (E, Figure 2). Drain the | il into an app oved receptacle. | Model | 90000 |
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| Note: Any of the oil drain plugs (F) sh wn may be installed in the engine. |
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| Spark Plug Gap |
| 0.030 in (0.76 mm) | |||||||||
3. | After the oil has drained, install and tighten the | il drain plug. | Spark Plug Torque |
| 180 | ||||||||
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| Armature Air Gap |
| 0.006 - 0.010 in (0.15 - 0.25 mm) | ||
Add oil |
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| Intake Valve Clearance |
| 0.005 - 0.007 in (0.13 - 0.18 mm) | |||||
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• | Place engine level. |
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| Exhaust Valve Clearance |
| 0.007 - 0.009 in (0.18 - 0.23 mm) | ||||
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2.Pour the oil slowly into the engine oil fill (B). Fill to point of overflowing.
3.Replace and tighten the oil fill cap.Models with extended dipstick1.Remove the dipstick (C, Figure 3) and wipe with a clean cloth.2.Pour the oil slowly into the engine oil fill (B). Do not overfill. After adding oil, wait one minute and then recheck the oil level.
3.Install and tighten the dipstick.4.Remove the dipstick and check the oil level. It should be at the top of the full indicator (D) on the dipstick.
5.Install and tighten the dipstick.*Engine power will decrease 3.5% for each 1,000 feet (300 meters) above sea level and 1% for each 10° F (5.6° C) above 77° F (25° C). The engine will operate satisfactorily at an angle up to 15°. Refer to the equipment operator’s manual for safe allowable operating limits on slopes.
Common Service Parts n| Service Part | Part Number |
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| Fuel Additive | 5041, 5058 |
| Resistor Spark Plug | 802592 |
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| Long Life Platinum Spark Plug | 5062 |
| Spark Plug Wrench | 89838, 5023 |
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| Spark Tester | 19368 |
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nWe recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts.
8 | BRIGGSandSTRATTON.COM |