O.S. engine OGA-100 KIT Instruction Manual page 4

OGA-100A GENERATOR
Right side
・The position of the generator (OGA-100A) is choosable from the three positions shown above.
・Mount the Generator after mounting the engine.
Installation
Lower
Use four screw holes for each depending
on the mounting position.
M4x25 Bolt
M4x30 Bolt
3
left side
15mm Spacer
4.5mm Spacer