Well, I couldnt get my 68 merc 20hp started today. I suspected it wasnt getting fuel. Took the spark wires off to remove the plugs to take a look and the spring stayed on one of the plugs came free of the wire and boot came off as well. being the novice that I am, Im not sure if they can be repaired or if I should go ahead and replace them? Looks like oldmercs.com has replacements that will work? Just looking for guidence here thanks. I really appretiate it!