[Jedijody]

The high tension lead is the spark plug wire.

To replace the cap, carefully cut the shrink wrap off and slide the braided shielding up the spark plug wire out of the way, remove the spring retaining ring from the end of the cap, bend out the tabs holding the cap halves together, remove the metal cap halves and silicone boot. Replace with like parts in reverse order, use some rubbing alcohol to lube the inside of the silicone boot so the plug wire and spring on the end will slide in easy.