Today I used my GP-20 that I had for awhile. It was always noisy. After a few months, it began to wobble every few seconds. Earlier today, I disassembled it, and cleaned the gears and wheels out. I noticed a piece of brass that I recently found out is called a contact strip, was dangling and hitting the wheels. I removed an inch or so of it. The engine doesn't run. What should I do? Is that what powers the engine? How do you reattach it? Should I solder it?
Thanks
Thanks