I have just purchased my first Kawasaki, a 91' EX500 and I am just starting to do routine maitenance (but will be rebulding the whole bike to give it to my son for his first bike in a couple of years. The problem I'm having is getting the spark plugs out, since my regular deep well sockets willnot fit down in the holes to go over the plugs to remove or tighten. Are there special sockets to fit these and where can I get them? Thank you for your time.