Was trying to start my rc last night and broke the pull string. Messed with it for a couple hours trying to rewind it, but couldnt get it to do it correctly. My question is is there any other methods to intall other than the pull start? Rc is hobao hyper 7tq w/.28 Mac star. Checked hobaowarehouse.com for a new pull start, but they dont have one in stock. Can anyone help? Thanks in advance.