If you need a new throttle assembly for the Invacare Zoom 220 mobility scooter, then Monster Scooter Parts can help. The potentiometer is an assembly with the wire harness and "wig-wag" lever as shown in the photo above
Scooter would not move for more that 20feet and slow down .I also found up and down movement of the arm after I removed the Assy. I seen that the I’m. arm on the ( pot ) moved from side to side so I ordered it I unpuped the old and put new one in and be for I closed it all up it Reyes it and it worked so I closed it and 2days later I used it on my vacation and I had a very good time with the Zoom 220 all week thank you Earl Hunkel