RE: BUSA SE-5a
The Fuji 32 is actually a 34cc and if not abused before you got it, should run very well and be more than enough for this plane. The nomenclature was corrected in later versions. Like most magneto engines, they can be a little finicky to hand start until you learn the routine and proper prop placement. If you can handle the additional nose weight, get a spring starter kit from B&B Specialties and starting will be almost automatic. The other thing is to make sure you mount to a FLAT firewall. Don't use washers for thrust adjustments. If need to use thin ply sanded to a wedge shape. Even though the mounts are just sheet metal some weird stresses were causing the crankcases to crack. The cases were supposedly fixed in the 32B and definitely the 34 but its difficult not knowing your engines history.
Mike