Mercury - Engine Starter WaveRunner & PWC Series Marine-Grade Build 8M6007434. Overview. There's a certain thrill that comes with riding a Yamaha WaveRunner-the kind that grabs you the moment you crack the throttle and feel the hull leap forward. But none of that excitement happens without a starter you can rely on. When you press that start button, you want instant response, not hesitation, not doubt. That peace of mind is worth a lot when your day on the water depends on it.. The Quicksilver 8