You will have to make a small modification to the centrifugal clutch for it to be reliable. The information is out there, using nothing more than the power of a decent Google, or should it be "Googling".
and you will potentialy (depending on the castings of your engine) need to slightly space out the pull start with magneto gaskets, and also grind down the pull start bolt heads by up to 2 mm, depending if there is any interference between the pawl disk and the pull start.
Still, it's a fairly quick and easy modification, if attachment of these accessory items requires a little custom tweeking.