Hi guys, my 5th build with a 66cc has a potential problem. Can you listen to the noise my engine makes in my you tube video and tell me what you think?
http://youtu.be/-_rubV8Fg44
The motor is a rb80 from bgf. I thought it had excessive play in the needle bearing for the piston pin. He sent me a new pin and bearing. I installed and it still makes this noise. Motor is new with less than an hour on it. Plug color is light brown. Running opti2 oil like always. When the bike makes the tinging metal sound the bike slows down a bit. If its 4 stroking, its awfully loud. What do you think?
http://youtu.be/-_rubV8Fg44
The motor is a rb80 from bgf. I thought it had excessive play in the needle bearing for the piston pin. He sent me a new pin and bearing. I installed and it still makes this noise. Motor is new with less than an hour on it. Plug color is light brown. Running opti2 oil like always. When the bike makes the tinging metal sound the bike slows down a bit. If its 4 stroking, its awfully loud. What do you think?