You've already got a great machine on your hands. But add the extra torque that our specially designed High Thrust models deliver, and you're looking at the workhorse you need to push your pontoon or heavy sailboat. The High Ratio Gear Case delivers added power while minimizing slippage and cavitation. The optional Dual Thrust Prop gives you more thrust in both forward and reverse for maximum maneuverability. It's Yamaha's clean, quiet, fuel-efficient four-stroke technology with an extra measure of muscle. Put it to work for you.