i dont know if it is just me, but i replaced the pull start with the roto start on the sts 28 ,and im having a heck of a time even keeping it running.ive gone through all the steps to start it .could it be faultyor is there somthing i dont know?the original motor in the x started easy ,is there much of a difference.my lhs says they wont help cause i didnt buy from them.any ideas...thanks