Yamaha XF375 Owner's Manual page 20

Specifications and requirements
1. Star label location
EMU40331
One Star—Low Emission
The one-star label identifies engines that meet the Air Re-
sources Board's Personal Watercraft and Outboard marine
engine 2001 exhaust emission standards. Engines meeting
these standards have 75% lower emissions than conven-
tional carbureted two-stroke engines. These engines are
equivalent to the U.S. EPA's 2006 standards for marine en-
gines.
EMU40341
Two Stars—Very Low Emission
The two-star label identifies engines that meet the Air Re-
sources Board's Personal Watercraft and Outboard marine
engine 2004 exhaust emission standards. Engines meeting
these standards have 20% lower emissions than One Star-
Low-Emission engines.
EMU40351
Three Stars—Ultra Low Emission
The three-star label identifies engines that meet the Air Re-
sources Board's Personal Watercraft and Outboard marine
engine 2008 exhaust emission standards or the Sterndrive
and Inboard marine engine 2003-2008 exhaust emission
standards. Engines meeting these standards have 65% low-
er emissions than One Star-Low-Emission engines.
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EMU33862
Four Stars—Super Ultra Low Emission
The four-star label identifies engines that meet the Air Re-
sources Board's Sterndrive and Inboard marine engine 2009
exhaust emission standards. Personal Watercraft and Out-
board marine engines may also comply with these stan-
dards. Engines meeting these standards have 90% lower
emissions than One Star-Low-Emission engines.
ZMU01702
ZMU01703
ZMU01704
ZMU05663