There are Several helpful posts in this thread to adjust this issue if you scan back a few posts. Specifically search for posts from #ZaphX He has done a good job of documenting and helping others with issues such as this. I would start with the bracket Behind the rear playfield upright that moves the ship. Specifically the linkage connection and the cotter pin that connects it. Same as I posted in the Other thread you asked for help in. Hope this helps.