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Frequently Asked Questions

What is Multi-Stage Induction?

Multi-stage induction enhances engine performance by changing the length of the intake manifold according to engine RPM. The system utilizes two intake manifold pipes per cylinder, one operating at low RPM and the other operating at high RPM. When the engine is operating a lower RPM, air enters the combustion chamber through the longer curved manifold pipe. The length of the pipe is designed to improve combustion and boost low end torque. As the RPM increases past a threshold, the valve on the direct intake pipe opens, letting air enter directly into the combustion chamber through the short, straight in take pipes. The engine will receive a greater volume of air thus improving the high speed power output. This system is standard on the DF175, 225 and 250.



As an essential provider of quality outboard motors, service, parts, and related safety equipment, we know that you count on Suzuki to be there for you, every day. We want to assure you, our customers, that you remain our top priority, always. During this critical time, Suzuki will continue its operations in order to meet your essential transportation needs.

Contact your local Suzuki marine dealer for questions concerning service, parts, accessories, or the need for a new Suzuki outboard motor. Please note, Suzuki marine dealers are independently owned and operated businesses, and may be subject to local directives. Contact information for Suzuki marine dealers in the continental United States and Alaska is available on this website.

Stay Safe. Keep a Healthy Distance. Enjoy your Suzuki.