Model Name Clarification Yg/Ef; Model Introduction Year - Yamaha EF4500iSE Theory & Diagnostics Manual

Model Name Clarification YG/EF

Yamaha generators have various model names that
represent the characteristics of the respective mod-
els as follows:
Consumer Generators
E F
F: Four stroke
DA: Air cooled diesel engine
DL: Liquid cooled diesel engine
G: Generators*
E: Engine generator
Y: Yamaha*
*NOTE: The letters YG are always used together to designate Yamaha Industrial Series Generators.

Model Introduction Year

Unlike Motorsports products, Yamaha does not use
or recognize model years for generators. Instead,
Yamaha uses the term Model Introduction Year
(MIY) to help identify one model from another. The
MIY is used to identify the year that a certain unit
was either first introduced to the US Market, or
received a significant technological update. The MIY
does not necessarily coincide with the actual year of
manufacture. In certain cases it may be necessary
to explain this to a customer who is buying a new
generator from your dealership. This explanation will
create a higher level of customer satisfaction by
preventing a customer from believing that they are
buying a used/or non-current generator.
6600 DE
AC Max. output B: Boost Technology
(kVA) at 60Hz D: Dual 120/240V AC output
E: Electric Starter
I: Inverter Technology
S: Soundproof Type
Generator Information and Theory
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