Test it
Primary resistance 1.40 to 1.54 ohms
secondary resistance 7600-8800 ohms
primary circuit resistor 1.30 to 1.40 ohms
replace the coil pack.
Bad coil Bad points Bad condensor Bad rotor Bad cap Bad distributor
Auto Zone will rear your computer codes for FREE. If you have any bad coil packs they will tell you .
Bad coil? Bad rotor? Bad distributor cap?
missfire on star up first 1000 rpm ignition coil is going bad use a ford coil if you dont want a lot of problems with aftermarket units
Rotten egg smell? Loss of power?
auto zone will check your codes for FREE. if you have a bad coil pack they will tell you.
A bad coil is usually a dead coil. The are generally thought of as on or off.
symptoms are: you can hear the engine missing, spitting and sputtering, loss of power...you can tell if it is a coil pack by unscrewing the spark plug that it connects to coil pack. when you look at your spark plug it should be a light grayish, white..this means the coil pack is working....it is best if you do this with new spark plugs, because your spark plugs could be bad. but you do this process until you find a bad plug then, that coil pack probably is the bad coil pack.
No, a bad coil will not drain the battery.
Auto Zone will check your codes for FREE... It will also tell you which one is bad.
does it have spark to the plug if not the part you might check would be the coil or the electronic start module probably the latter if it is a newer mower or of ots older then the coil magneto usually dont go bad could be a bad gap between the coil and the magneto if its an older mower could be a bad set of points if its an older mower point gap could be bad spark plug could be bad as I don't know exactly what the lawn mower is doing hard to tell what is wrong