Why do I have power to my coil but no spark?
There are a few reasons for no spark, new coil pack could be defective, crank sensor, ignition module or bad wire in primary circuit, faulty ECM/PCM. You may have to have a good technician have a look, diagnose and estimate repair. Second link gives detailed instructions for testing and diagnosing coil pack.
How do you know if your ignition coil is bad?
Replace the original wire with the in-line spark tester, and attempt to start the motor. Watch for the same intensity of a spark that you saw when the mower was cold, If there is little or no spark, the ignition coil is bad and needs replacement.
How do I know if my magneto is bad?
Holding the plastic handle of the screwdriver, bring the metal area of the screwdriver close to a metal part of the engine, being careful not to touch it. Have someone start the mower. If you don’t see a spark between the screwdriver and the engine, the magneto is bad.
Should magneto touch flywheel?
The magneto should not touch the flywheel. In fact, you have to adjust the gap between the coil and flywheel magnets so that the flywheel magnet lines up directly with the magnetic coil and feeler gauge tool.
Why does my lawn mower have no spark?
If no spark appears, check for broken wires, shorts, grounds or a defective stop switch. Once you have confirmed that the stop switch is working, reconnect the spark plug lead.
Why will my Briggs and Stratton engine not start?
Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas. If this doesn’t work, you might need a new fuel filter.
Can a bad ground cause no spark?
Bad grounds can cause no spark issues though. It can cause the ground to ground through the ecu frying it. If you get a single spark when turning on the ignition then nothing when cranking it’s the ecu. It’s a really good idea to go over all your grounds on a regular basis anyway.
Can ECM cause no spark?
It is extremely rare for a no spark condition to be the result of a faulty coil or ECM. Users get fixated on these items and jump to the conclusion they must be responsible for their problem because these items are easy to see and replace.
How many ohms should a Briggs and Stratton coil have?
Learn How To Test A Briggs & Stratton Ignition Coil A working ignition coil will give a reading of between 2.5 – 5 k ohms. Set the positive lead of the multi-meter in position where the spark plug would usually insert – ensure it has made good contact.
What does it mean when your lawn tractor does not have a spark?
If you do not have spark with the shut-off wire disconnected, then the coil is bad and you will need to replace it. Ranwell1 : If this engine is NOT on a lawn tractor, the process of testing the ignition coil is the same. But you most likely will not have the same safety switches, but there may be others to check. Ranwell1 : I hope this will help.
What does wrong side of Briggs and Stratton coil say?
The wrong side out will say “cylinder side”. They can be put on upside down, of course the curved side has to go toward the flywheel, but you can flip it over and it will also fit. If you got an original B&S coil the probability of it being bad are very low.
What to do if there is no spark in the ignition?
Ranwell1 : this is the part that produces the spark. The spark plug wire is connected to it. Ranwell1 : You can check to see if the ignition coil is the problem by removing the engine cover and finding the small wire that is connected to the ignition coil. this is the Shut-off wirre or KILL wire as it is sometimes called.