I have almost finished my complete restore of my first pachinko machine (Nishijin B)! I tested it out last night, and aside from the brass nails needing some minor adjustments, it WORKED! At least temporarily...At this point the jackpot lever at the bottom of the machine isn't working. The jackpot bar on the right side appears to be jammed and the weight of the ball is not allowing the jackpot to release. Any suggestions on what may be going on?