Quoted from Snowtrooper:2.) Up Kicker Not Strong Enough: The infamous up kicker strikes again. There was a A-1496 coil installed which was working great. Again I was going to upgrade and continue my bulletproofing (Bulletproofing = upgrading the power transistor and adding the pull up resistor, installed and wired a pop bumper driver board to prevent burn out/ meltdown / overheating, and upgraded the coil to the A-4893 coil). The pop bumper driver board was a suggestion found on Pin Lizards Black Hole / Haunted House Club manual. I am stumped why the up kicker lost the strength / power to shoot the ball up the ramp. Defective power transistor? Suggestions?
I highly recommend replacing the upkicker with a flipper coil and EOS switch. You can contact Cliffy to have the bracket made up. I reached out to him a few months ago and he was able to get one out to me in about a week. The EOS switch will help prevent the coil from getting fried if the transistor fails and it can be adjusted to get the kicker strength more consistent. You should then run a smaller 2A fuse in F17 for additional protection.
https://pinwiki.com/wiki/index.php?title=Black_Hole#Black_Hole_Ball_Lift_Kicker_Mod