At the risk of mucking up the works, How about a product called Smart
 Drive,
 which would be mounted behind the flywheel. This stator and magnet
 combination can produce way more power than needed and could be used as a
 starter if drive circuitry were to be designed.  The u-tube guy had
 rewired
 the drive for 12 volts and can get hundreds of amps or can leave wired
 polyphase for hundreds of volts.  I suggest using some circuits for
 alternator and others for starter.     See u-tube for various videos
 http://www.youtube.com/watch?v=v5mZLhtE_0Q&feature=related  ,
 http://www.youtube.com/watch?v=iZW6gHOTt2Q&feature=related     and
 http://www.ecoinnovation.co.nz/c-59-parts.aspx  for a high strength steel
 rotor to replace the plastic one.  Also found a new stator on E-bay
 for less
 than $100.  Comments?


 Dan F

I think you might have a problem with mounting this on the flywheel.
You might get away with mounting it on the propeller shaft.  I doubt
that this will survive 7000 RPM without violent dissociation of parts.
That would not be pretty.

I remember a friend of mine who was cleaning an electric motor rotor by
spinning it with an air hose.  That turned into a lot of not very pretty
too when the windings parted company with the steel core.

Mark LaPierre

Mark

I can imagine that exploded motor was quite the sight!  In this application
the stator is stationary and the outer magnet cage rotates.  This makes it
easy to wire but even the steel cage may have to be reinforced to hold the
magnets at 7500 RPM (the original cage is plastic).

Dan F