FYI, Here's a pic of a dissected older 1974 plug cap off a Honda MT125 that I just replaced. It ran fine when cold, then after riding and shutting off , trying to restart wasn't easy. It would start and run a few seconds , then die like the ignition switch was turned off. The screw on the LH side is what the coil wire screwed onto. Then there is a resister thingy that ohmed out at 5000 1kw so that part was good. Then the little spring brought the spark around the bend and touched the brass insert that went over the S'Plug. I believe the problem was the spring end wore on the brass piece so it wasn't making as good a contact as when new. You can see a crater worn where the spring contacted the brass insert for the S'Plug .Replaced it with a $5 NGK one and it works great with no more problems, "so now you know the rest of the story". rj
