EFiS/iSC. EFiS portable generator pdf manual download. EFFW Manuals and User Guides for Yamaha EFiSE, EFiSEB. EFiS portable generator pdf manual download. EFiS. EFiSE portable generator pdf manual download. This manual will provide you with a good basic understanding of the operation and main-tenance of this machine. CODE SERIAL No. EFiS EFiSE EFiSEB Yamaha Generator Owner's Manual. Also for: Efise, Efiseb View the manual for the Yamaha EFiSE here, for free. If you have any questions regarding t