Assessments - 4, GPA: 4.5
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[2] Disconnect spark plug wires and keep away from spark plugs. Dis- connect battery (if equip- ped with electric starter) at negative terminal. [3] With engine OFF but still warm remove oil drain plug and drain oil into appropriate receptacle. [4] Reinstall drain plug. Remove dipstick. [5] Fill to FULL mark on dipstick with new oil. Do not overfill. Note: Engine without oil filter holds approximately 1-7/8 quarts (60 ounces; 1.8 liters). Engine equipped with filter holds approximately 2 quarts (64 ounces; 1.9 liters). [6] Replace dipstick. 10 11 MAINTENANCE CHANGING OIL FILTER Change oil filter after every 100 hours or every season. [1] Drain engine oil and remove oil filter. [2] Before installing new filter, lightly oil filter gasket with fresh, clean oil. [3] Screw filter on by hand until gasket contacts oil filter adapter. Tighten 1/2 to 3/4 turn more. [4] Add fresh oil. Fill to FULL line on dipstick. [5] Start and run engine at idle to check for leaks. [6] Stop engine. Re-check oil level. Add oil if required. OIL FILTER P/N 492932 OR 5049 OIL PRESSURE If oil pressure drops below 4-6 psi (.2-.4 kg/cm2), an oil pressure switch (if engine is equipped) will either activate a warning light or stop the engine. Check oil level with dipstick. If oil level is between ADD and FULL mark on dipstick, Do not try to restart engine. Contact an Authorized Briggs & Stratton Service Dealer. Do not operate engine until oil pressure is corrected. If oil level is below ADD mark on dipstick, add oil to bring level to FULL mark. Restart engine and check oil pressure. If pressure is normal, continue to operate engine. Note: Oil pressure gauge, if engine is equipped, is supplied by manufacturer of equipment. AIR CLEANER All engines have an air cleaner cartridge. In addition, some engines have a pre-cleaner. CLEANING PRE-CLEANERS AND CARTRIDGES CAUTION: Do not use pressurized air or solvents to clean cartridge. Pressurized air can damage cartridge; solvents will dissolve cartridge. Pre-cleaner To clean pre-cleaner (if equipped), separate it from cartridge and wash in liquid detergent and water. Squeeze dry in a clean cloth. Saturate in engine oil. Squeeze in clean, absorbent cloth to remove all EXCESS oil. Cartridge To clean cartridge, gently tap pleated paper side on a flat surface. REMOVING AND INSTALLING AIR CLEANER Dual element air cleaner COVER CARTRIDGE PART NO. 499486 FOAM PRE-CLEANER PART NO. 273638 BASE KNOB [1] Unscrew knobs and remove cover. [2] Carefully remove air cleaner cartridge and pre-cleaner to prevent debris from entering carburetor. [3] Reinstall clean (or new) pre-cleaner in base. [4] Reinstall clean (or new) cartridge on pre-cleaner. [5] Replace cover and tighten knobs securely. MAINTENANCE MAINTENANCE ENGINE AND ENGINE PARTS We recommend that you see an authorized Briggs & Stratton Service Dealer for all maintenance and service of the engine and engine parts. Use only genuine Briggs & Stratton parts. WARNING WARNING If you perform any maintenance on the engine, first disconnect the spark plug wires from the spark plugs, and disconnect the battery at the negative terminal (electric starter engines only) to prevent unintentional sparking. Unintentional sparking can result in fire or electric shock. Unintentional start-up can result in entanglement, traumatic amputation or laceration. Use only correct tools. • Do not strike the flywheel with a hammer or hard object because the flywheel may later shatter during operation. • Do not tamper with governor spring, links or other parts to increase engine speed. MUFFLER WARNING Replacement parts for the muffler must be the same and installed in the same position as the original parts, otherwise fire can occur. If muffler is equipped with spark arrestor screen, remove screen for inspection. Replace screen if damaged or plugged. FUEL SYSTEM WARNING Replacement parts for fuel system (cap, hoses, tanks, filters, etc.) must be the same as original parts, otherwise fire can occur. FUEL FILTER (if equipped) IIIIIIIIIIIIIIIII FILTER PART NO. 493629 [1] Disconnect spark plug wires and keep away from spark plugs. [2] Drain fuel tank or close fuel shut-off valve before replacing fuel filter. Otherwise, fuel can leak out, creating a fire/explosion hazard. WARNING AIR COOLING SYSTEM Debris may clog the engine’s air cooling system. Remove blower housing and clean area shown to prevent overheating and engine damage. SCREWS AIR CLEANER KNOBS CLEAN AREAS UNDER BLOWER HOUSING OF ALL DEBRIS CARBURETOR AIR INTAKE SPARK PLUG Use only Briggs & Stratton Spark Tester (part number 19368) to check for spark. Note: In some areas, local law requires using resistor spark plug to suppress ignition signals. If this engine was originally equipped with resistor spark plug, use same type for replacement. .030” (0.76 mm) WIRE GAGE RESISTOR P/N 491055 VALVE CLEARANCE Check valve clearance yearly. (See Tune-up Specifications on page 6). 12 CLEANING DEBRIS CAUTION: Do not use water to clean engine part...
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