Briggs & Stratton 120000 string 12.5 Horse Power engines are utilized on many different lawn, Lawn Care service Phoenix and house tools, such as lawnmowers, pressure washers, water pumps and paint spray. The flywheel has to be removed when replacing it and when inspecting the flywheel and flywheel key for cracks, breaks and damage. Specialty tools like a flywheel starter clutch removal program and flywheel puller tool are required to correctly remove the flywheel in the engine crankshaft.
Drain any excess fuel in the motor fuel cylinder by turning the machine over to reduce fuel spills when disassembling the motor. Pull the motor spark plug lead in the spark plug by hand to stop the motor from accidental starting during the disassembly process.
Unscrew the air cleaner cover keeping wing nuts by hand; lift the air cleaner cover in the air cleaner housing to get the air filter. Unscrew the air cleaner cover retaining screws with a screwdriver; lift the air filter element from the air cleaner housing by hand. Pull the air cleaner housing from the motor.
Unscrew the oil filler tube keeping screw with a socket wrench, if armed. Unscrew the flywheel brake spring cover in the flywheel brake spring bracket with a screwdriver. Unhook the hook end of the flywheel brake spring in the flywheel brake arm with needle-nosed pliers. The flywheel brake spring cover and flywheel brake spring are situated directly next to the flywheel.
Unscrew the motor compressor casing retaining bolts from the engine crankcase with a socket wrench. Lift the engine compressor casing from the top of the engine crankcase. Unscrew the rotating display retaining screws in the surface of the motor flywheel with a socket wrench, if armed, to get the motor flywheel.
Pull any cable connectors in the motor armature connector tabs with needle-nosed pliers. Some engine versions might have a couple of wires connected to the side of this motor armature, while others do not have any cable connectors. Unscrew the motor armature retaining screws in the motor armature mounting studs with a socket wrench. Lift the motor armature in the motor to obtain full access to the flywheel.
Wrap a strap wrench round the flywheel to hold it in position. Decide on a flywheel starter clutch removal program in addition to this flywheel starter clutch, aligning the starter clutch tool notches with the starter clutch ears. Fit a box-end wrench onto the hex-shaped finish of the starter clutch removal program. Turn the box-end wrench counter-clockwise to eliminate the flywheel starter clutch.
Unscrew the flywheel retaining nut in the engine crankshaft threads with a breaker bar and socket. Remove the motor flywheel in the engine crankshaft with a flywheel puller tool. Place the flywheel puller tool middle hole on the engine crankshaft end, aligning the flywheel puller tool bolts with the threaded holes of the motor flywheel on every side of the engine crankshaft.
Tighten the flywheel puller tool bolts with a wrench. Tighten the nuts on the base of the flywheel puller tool with a wrench. Tighten the flywheel puller tool top nuts down against the flywheel puller tool evenly with a wrench until the motor flywheel pops free from the engine crankshaft. Strike the surface of the flywheel puller once or twice with a hammer to free stuck or deceptive motor flywheels in the engine crankshaft. Lift the motor flywheel in the engine crankshaft.