MACHINE RUNNING BAD OR BOGGING DOWN

There are a few reasons for this to happen. The first thing to look for would be the setting of the tattoo machine and the setting of the power supply. Check the contact point to see if it looks burned or pitted. If this is the case, use a piece of fine sandpaper and very lightly shine the contact point. Next, you might want to adjust the contact screw. This is a very fine adjustment, and very little movement is required. Your machine should sound smooth and strong. There is the chance that the springs are worn out. This is unlikely as these springs seem to last for quite awhile.