Quoted from mwelliott99:A few weeks ago the pop bumper on the top level of the game was working fine but now it's really weak. It still fires but I noticed the metal ring didn't return to its place immediately. It moved slowly and I had to give it a helping hand. It probably means it's kicking down slowly too - which explains its weakness. I have a Pascal board and Pascal pop bumper boards so they should fine.
I'm about to strip it down and rebuild it but don't know if I need a new coil. Can you have a weak coil or does it either fully work or not work?
Thanks
Matt
It would be rare to need a new coil. A lot of folks jump on replacing a coil at the first sign of trouble, but they are fairly robust. Rebuild, cleaning, some other mechanical problem such as bad coil stops or sleeves will usually improve operation. Read Vids guide, too.
https://pinside.com/pinball/forum/topic/vids-guide-to-rebuilding-pop-bumpers