1999 K1200LTC with 75k. I believe my bike has the original spark plugs. When I started to replace them I noticed a couple of the plug wires had been "chaffed" by contact with the plug caps so I am replacing the wires. I already have the wires. There is a cover over the distributor that has one screw that is going to be hard to access. Anyone on this site done this job before and have any advice for me?