I would stay from Kangkeusa. I bought one of their SK 90's and after a month or so of running the carb got so sloppy the motor will not run anymore.The needle is real loose, so I wrote to Kangke, four times and they never got back to me. I told them I just wanted to buy another carb from them to replace it. No answer. To bad, not a bad motor for the price. And, yes I changed the o-ring on the needle.