Just got this Zeda-80, put it together following some reputable videos, started it up, tuned the carb, and ever since it had ran smooth. Went 6 miles with zero maintenance and surprised myself. I noticed a clinking noise that soon became the only thing i heard when i started it up. I have taken it apart multiple times, looked through the top and and it all looks clean. (as it should for <15 miles). I assume the sound is either something in the top end, or vibrations caused by me not putting rubber vibration dampeners in between the engine and frame. I’m not sure if it’s the piston hitting the head, because there is no pitting on either the top of the piston or the head. I have attached an idle video where you can hear it clearly, and a revving video as well. Just want to make sure the thing is safe before I ride it more. Thanks all!
Idle
Revving video
Idle
Revving video