Piston shape

http://www.rctech.net/forum/members/...96-piston.html


From Uriah Murnan-

"I only clean the carbon if it is really thick, and looks like it could flake off. I only clean the top of the piston. I don't clean carbon off the side of the piston"

http://www.rctech.net/forum/onroad-n...otors-219.html