What causes a weak spark in a coil?
What causes a weak spark in a coil?
Weak coil outputs sometimes generate specific fault codes, but not always. A Plug that is tracking or where the insulation has failed internally or where it goes over the plug may only genera As others have said, in most cases it is likely to be a failing coil pack.
How many parts are in a spark plug?
There is only 7 parts to the ignition – spark plug, spark plug cap, coil, CDI box, stator, flywheel and wiring – a weak spark can be any or all of the parts – generally, it’s spark plug first, wiring connections second, spark plug cap third, stator charge coils fourth, coil fifth, CDI box sixth and flywheel last. Not too hard to find.
What should my spark plugs top out at?
In the old days, a coil would top out at around 20Kv open circuit, after 10,000 miles or so, the plugs would be worn enough to push this to the limit and poor performance would encourage owners to book a service. Nowadays, coils are good for whatever is needed really. 50Kv upwards open circuit.
What causes a spark from a worn plug?
Under these circumstances, even very worn plugs with a very large gap will still fire because the coil will generate whatever voltage might be necessary. The problem is that by doing so, the very high voltages generated will overload the insulation, both within the coil and in the connection to the plug and eventually cause a coil failure.
How can I tell if my spark plug is weak?
With a peak voltage tester you can measure the output of the coil – spark plug wire to meter to ground between 20,000 to 40,000 volts. The ******* method is to connect a timing light and with the spark plug in the engine, see if the light flashes – if the light flashes, it indicates the current necessary for a spark has occurred.
There is only 7 parts to the ignition – spark plug, spark plug cap, coil, CDI box, stator, flywheel and wiring – a weak spark can be any or all of the parts – generally, it’s spark plug first, wiring connections second, spark plug cap third, stator charge coils fourth, coil fifth, CDI box sixth and flywheel last. Not too hard to find.
What are the parts of a Polaris spark plug?
It is 300 or 400 dollars. New parts include stator and pulse coil (picked up as a whole unit), voltage regulator, coil, coil wire, coil wire end (where it plugs into the spark plug), new battery. I had to unplug the black wire from the cdi box that goes up to the speedometer to get it to spark.
Why does my CDI have a weak spark?
Voltage to the white and blue wire from the cdi to the coil is only getting around 2 volts while cranking. Any idea what is causing the weak spark. This thing is about to make me pull my hair out.
