See an authorized dealer or contact Briggs & Stratton if you are unsure of any procedure or have additional questions. Disconnect the stop switch wire from the flywheel brake or other stop switch and remove the coil/armature. Reconnect the stop switch. Push Button starting or Pull Cords (depending on your engine type). Index cards of the proper thickness also work well. My B&S v-twin will only fire when the "kill wires" are unplugged from the coils. Hence, running the kill wire to either a momentary switch or a normal on/off switch, the other side of which is grounded, is a safe and effective way to stop the engine. Place the stop switch control in RUN or START position. Turn the flywheel so the magnets are on the opposite side from the ignition coil (armature). Common Flywheel Problems. If the engine is not connected to the equipment, make sure the stop switch wire is not grounded. Briggs and stratton stop cable. The coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting. What part needs to be replaced.
Once the engine is running, the flywheel keeps rotating, the magnets keep passing the coil and the spark plug keep firing based on a specific timing. Testing for spark at this time may show an ignition coil failure. It has a magneto not a coil. WARNING: Always read the engine and equipment manual(s) before starting, operating, or servicing your engine or equipment to avoid personal injury or property damage. Remove blower housing. Briggs and stratton engine will not shut off with key - Wheel Horse Electrical. If you do not have repair manual contact your local dealer for the correct specification. The kill wire normally runs to a contact on the governor plate above the carburetor. GREY WIRE - This needs to run to an on/off switch and then to positive power on your battery, this controls the carby solenoid for fuel. Old, damaged or fouled spark plugs can also require service or replacement. Is there no spark in the engine of your lawn mower, snow blower or outdoor power equipment? Attach coil wire to tester and tester to ground for this test, DO NOT attach to spark plug for this test as the engine may start. When you start your lawn mower or small engine, the rotation of the flywheel causes its magnets to pass the coil (or armature).
Armatures are often packaged with a thick piece of paper to assist in setting the gap. Engine quits while running? This is the kill wire. Please consult a Briggs & Stratton Service Dealer for conversion kit and installation. Once you have confirmed that the stop switch is working, reconnect the spark plug lead.
Unhook the spark plug wire and secure it, removing any batteries, if equipped. You can also test the flywheel magnets for any potential issues. BLACK WIRE - This is the engine kill switch, It needs to run to an ON/OFF switch and then run to earth. The terminal is located towards the base of the starter motor.
If a spark appears, inspect the stop switch for damage. How to test and repair small engine ignition system problems? Disconnect battery ground first (if equipped). Common Mistakes When Testing Coils. Common armature gap ranges are. Im not the original owner so i dont know if someone flipped something around.
The Magnetron has only two wires coming out of it: the thick high tension lead to the spark plug, and a longer, thin black wire with a spade connector on the end of it. Servicing Spark Plug Problems. Your engine repair manual will provide the proper gap for your engine. Quick Links: The ignition system generates the spark needed to ignite the air/fuel mixture for your small engine.