[PDF] RST90Y RS Venture Owners Manual - Yamaha Motorsports USA 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 Yamaha Owner's Manuals - Yamaha Motor Corp, USA View Yamaha Owner's Manuals Online. The Yamaha Owner's Manual Section offers the ability to view Owner's Manuals for many past Yamaha models.