If there is only one plug, try removing the plug, spraying WD40 in the plug hole, replace the plug and try starting.
Just like any other spark plug you just need to find the size of the plug and buy it.
If you do not have any problems with plugs, change them when you replace the timing belt (do not forget to replace the spark plug wires too).
No you do not need to replace any plugs at all when replacing wires.
To replace the spark plug seals on a 1999 Lexus ES300, first, remove the engine cover and disconnect the ignition coils by unscrewing them. Carefully pull the coils out and then remove the spark plugs using a spark plug socket. Replace the old rubber seals on the spark plug tubes, ensuring they fit snugly, and reassemble by reinstalling the spark plugs and coils before securing the engine cover back in place. Always check for any oil leaks after reinstallation.
Absolutely. Replace any damaged pug wire.
I do not understand why you want to remove the porcelain if it is broken off. Just remove & replace the spark plug which is no longer any good if the porcelain is broken.
To remove the spark plug on a Honda FES Pantheon, first, ensure the engine is cool and disconnect the battery for safety. Locate the spark plug by removing any components that may obstruct access, such as the seat or cover. Use a spark plug socket and ratchet to unscrew the spark plug counterclockwise. Once removed, inspect the plug and replace it if necessary before reinstalling it by threading it in and tightening it securely.
remove fuel rail and any hoses plus air cleaner
same as any other car u remove the spark lead from the top of the engine beside the rocker cover then use a spark plug socket (which is longer than a normal one) to remove each spark plug be careful to put the leads back onto the same spark plug you removed and not to over tighten the spark plugs.
It means that for some reason the spark plug did not ignite the fuel mixture and therefore the cylinder that misfired did not produce any power. It is caused by a bad spark plug or a bad plug wire or lead or a bad ignition coil.
A spark plug gapper. Avalible at any autoparts store
The part that cracks on a spark plug is the insulating material that shields the metal part of the plug that conducts the electrical spark, potentially allowing it to escape or leak and possibly ignite any flammable substances or materials as it grounds itself.