Hi Jeff and MF, a F/C will bolt straight on using the adapter plate. Jeff, the pull position might also have something to do with it, the way they are setup in the factory position means you are almost doing a vertical pull which is not that different to a sidepull but I'm sure the gearing of the sidepull makes it easier. Also with the cup pull starters I have come across none of this heavy pulling required to get them spinning. I'm convinced it is the way the pull start design works, pulling off the end of the con rod, not directly on the end of the crank