When I attempted to pull the ignition coil Boot from my spark plug today I noticed it came apart like http://www.ebay.com/itm/86-HONDA-ATC...82eaf7&vxp=mtr . Does this mean that my ignition coil is broke or usable? Also it was very hard to pull off and I actually had to unscrew it from the top of the spark plug. Looking at my manual, it looks like there should not be that little thing on the very top of the plug (the thing you would unscrew and discard to expose the threads on the top of the plug) then the boot would go right onto the threads right?