Snapper NXT2346 Operater's Manual - Page 9

How To Replace The Fuel Filter - Figure 10 Troubleshooting Need Assistance? Go to BRIGGSandSTRATTON.COM or call 1-800-233-3723. WARNING Fuel and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death.  Keep fuel away from sparks, open flames, pilot lights, heat, and other ignition sources.  Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary.  Before replacing the fuel filter, drain the fuel tank or close the fuel shut-off valve.  Replacement parts must be the same and installed in the same position as the original parts.  If fuel spills, wait until it evaporates before starting engine. 1. Before replacing the fuel filter (A, Figure 10), if equipped, drain the fuel tank or close the fuel shut-off valve. Otherwise, fuel can leak out and cause a fire or explosion. 2. Use pliers to squeeze tabs (B) on the clamps (C), then slide the clamps away from the fuel filter. Twist and pull the fuel lines (D) off of the fuel filter. 3. Check the fuel lines for cracks or leaks. Replace if necessary. 4. Replace the fuel filter with an original equipment replacement filter. 5. Secure the fuel lines with the clamps as shown. Specifications Engine Specifications Model Displacement Bore Stroke Oil Capacity Engine Specifications Model Displacement Bore Stroke 400000 40.03 ci (656 cc) 2.970 in (75.43 mm) 2.890 in (73.41 mm) 62 -- 64 oz (1.8 -- 1.9 L) 440000 44.18 ci (724 cc) 3.120 in (79.24 mm) 2.890 in (73.41 mm) How To Clean The Air Cooling System - Figure 11 Oil Capacity 62 -- 64 oz (1.8 -- 1.9 L) WARNING Running engines produce heat. Engine parts, especially muffler, r n become extremely hot. Severe thermal burns can occur on contact. fo tio Combustible debris, such as leaves, grass, brush, etc. can catch fire.  Allow muffler, engine cylinder and fins to cool before touching. t  Remove accumulated debris from muffler area and cylinder area. c NOTICE: Do not use water to clean the engine. Water could contaminate the fuel o u system. Use a brush or dry cloth to clean the engine. This is an air cooled engine. Dirt or debris can restrict air flow and cause the engine to N d overheat, resulting in poor performance and reduced engine life. Use a brush or dry cloth to remove debris from the finger guard/rotating screen (A). Keep linkage, springs and controls (B) clean. Keep the area around and behind the o muffler free of any combustible debris (Figure 11). Make sure the oil cooler fins (C) are r free of dirt and debris. p Storage Re WARNING Engine Specifications Model Displacement Bore Stroke Oil Capacity 490000 49.42 ci (810 cc) 3.300 in (83.81 mm) 2.890 in (73.41 mm) 66 -- 68 oz (1.9 -- 2.0 L) Tune-up Specifications * Model 400000, 440000, 490000 Spark Plug Gap 0.030 in (0.76 mm) Spark Plug Torque 180 lb-in (20 Nm) Armature Air Gap 0.008 - 0.012 in (0.20 - 0.30 mm) Intake Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm) Exhaust Valve Clearance 0.004 - 0.006 in (0.10 - 0.15 mm) * 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 Fuel and its vapors are extremely flammable and explosive. Service Part Part Number Fire or explosion can cause severe burns or death. Air Filter, Flat 499486 When Storing Fuel Or Equipment With Fuel In Tank  Store away from furnaces, stoves, water heaters or other appliances that have pilot lights or other ignition sources because they can ignite fuel vapors. Air Filter Pre-cleaner, Flat Air Filter, Oval Air Filter Pre-cleaner, Oval 273638 792105 792303 Fuel System Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum deposits to form in the fuel system or on essential carburetor parts. To keep fuel fresh, use Briggs & Stratton Advanced Formula Fuel Treatment & Stabilizer, available wherever Briggs & Stratton genuine service parts are sold. For engines equipped with a FRESH START® fuel cap, use Briggs & Stratton FRESH START® available in a drip concentrate cartridge. There is no need to drain gasoline from the engine if a fuel stabilizer is added according to instructions. Run the engine for 2 minutes to circulate the stabilizer throughout the fuel system before storage. If gasoline in the engine has not been treated with a fuel stabilizer, it must be drained into an approved container. Run the engine until it stops from lack of fuel. The use of a fuel stabilizer in the storage container is recommended to maintain freshness. Engine Oil While the engine is still warm, change the engine oil. See the How To Change The Oil section. Oil -- SAE 30 100028 Oil Filter, Standard -- Black 492932 Oil Filter, High Efficiency -- Yellow 795890 Oil Filter, High Efficiency -- Orange 798576 Fuel Filter 691035 Fuel Additive 5041, 5058 Resistor Spark Plug 491055 Long Life Platinum Spark Plug 5066 Spark Plug Wrench 19374 Spark Tester 19368 n We recommend that you see any Briggs & Stratton Authorized Dealer for all maintenance and service of the engine and engine parts. en 9