Stuttering shooter

[littlesteelballs]

Hi, I cant seem to figure this one out. Most of the time while im shooting it works fine. fingers on the ground ring. It will always continuesly keep shooting. But if the "hammer" stops midway and then twist the knob it will stutter and vibrate a bit and then start shooting again with the first couple of balls running short and going back to the tray. I thought it might have something to do with the pause button, but it doesnt seem to make a difference if its used or not. Any ideas?
Thanks

It also does not happen when it is dry fired without balls.
It is a nishijin saint maria with classical music theme.saint maria pachinko.jpg

[Moparformances]

we have all see weird stuff crammed inside of shooters that have been taken apart.. ya might consider a little open handle surgery, see whats ticking or arcing

[takethecastle57]

It's a Great Machine that I had sold my fully operational one to a fellow pachitalker . About a few years later I found a Really good looking one at a local thrift store then I found that the Brain i.c. Chip was removed . So I have my second Saint Maria but can't play it until I find a Brain chip for it .

I do agree for the shooter knob surgery just take plenty of photos and work safe.