Mercury - Quicksilver 835271Q2 Flo-Torq II Hub Kit Yamaha 115-130HP Outboards (1984 & Newer) 835271Q2. Overview. Get smoother performance and better drivetrain protection with the Quicksilver 835271Q2 Flo-Torq II Hub Kit, built for Yamaha 115-130HP outboards (1984 and newer). This kit lets you install Quicksilver or Mercury propellers on Yamaha engines, giving you access to superior prop design and the durability of Mercury's trusted Flo-Torq system.. The Flo-Torq II hub cushions your propeller