18-03-14, 10:10 PM
The rubber cap between cap and lead is to keep the moisture out , the cable is screwed on to the L shaped plug cap that fits onto the spark plug........black caps are the origanal ones , if red they will be after market ngk ones......be carefull not to trim too much off as it wont reach the plug and is moulded into the coil at the other end soo hard to replace........they can be joined but not reconmended.
One, is never going to be enough.....