Ok Alieanman .WHat you do is ,on the spark plug wire remove about 2-3 mm of the insulation without damaging the interior core.Than turn the adaptor or connector as you called it ontu the spark plug wire so that the core of the spark plug wire is inserted into the small part of the Connector....Than crimp the conector where the core in in,but dont cut it.You may use a dull side cutter to do it.And also crimp the outter part(the thicker part,insulation) with a pliers.BUT NOT A SIDE CUTTER....it needs to be even...the connector needs to be even and straight on the spark plug wire.Now use some silicone spray on the wire and on the new spark plug conector ant screwit on..that is it
Hoe it worked harald