Went out this morning and the Rubicon wouldn't start I think this is the first time in 19 years I had a no start situation. Pulled and checked the plug but no spark. Reached in and moved around the the plug wire and the coil and then all of sudden I had spark and got it fired up. Does this sound like it would simply be a faulty coil and wire or would there still be something else that may have caused this? I noticed as well if I buy the coil it does not come with the cap. How is the cap attached does it slide on or what happens?