ESU10121
Congratulations on your purchase of a
Yamaha snowmobile. This model is the result
of Yamaha's vast experience in the produc-
tion of fine sporting and touring snowmobiles.
It represents the high degree of craftsmanship
and reliability that have made Yamaha a lead-
er in these fields.
This manual will give you an understanding of
the operation, inspection, and basic mainte-
nance of this snowmobile. If you have any
questions concerning the operation or main-
tenance of your snowmobile, please consult a
Yamaha dealer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current product
information available at the time of printing,
there may be minor discrepancies between
your snowmobile and this manual. If there is
any question concerning this manual, please
consult a Yamaha dealer.
EWS00670
WARNING
Please read this manual carefully before
operating this snowmobile. Do not attempt
to operate this snowmobile until you have
attained adequate knowledge of its con-
trols and operating features.
Regular inspections and careful mainte-
nance, along with good operating tech-
niques, will help ensure that you safely
enjoy the capabilities and reliability of this
snowmobile.
RST90Y
OWNER'S MANUAL
©2008 by Yamaha Motor Corporation,
U.S.A.
1st Edition, March 2008
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in Japan.
P/N LIT-12628-02-72
Introduction