| 摘要 |
An engine for a watercraft includes an improved air induction system that can have a large plenum chamber notwithstanding being placed in a narrow engine compartment. The air induction system includes a plenum chamber member defining the plenum chamber. The plenum chamber member has an air inlet port for the plenum chamber. The air induction system also includes one or more throttle bodies. The throttle bodies have throttle valves admitting air to one or more combustion chambers from the plenum chamber. The throttle bodies are disposed within the plenum chamber. The construction of the air induction system not only provide a large capacity plenum chamber, but also protects the throttle bodies from water.
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