Patent ID: 7140935
Filing Date: 2006-11-28
Classification: B63B,B63H,F01N

Abstract:
1. A small jet propulsion watercraft having an engine and a body configured to be operable by an operator riding on a stepping platform provided at a rear of the body, the body including left and right side wall portions extending upwardly and disposed at both left and right sides of the stepping platform, a first water lock device, a second water lock device, wherein the water lock devices are configured to guide exhaust gas to an exterior of the watercraft from an exhaust port of the engine and the water lock devices are at least partially disposed within the left and right side wall portions, and a connecting pipe assembly located directly beneath the stepping platform and connecting the water lock devices, wherein the first and second water lock devices are connected by a small-diameter pipe at a position lower than a position where the connecting pipe assembly is connected to the first and second water lock devices.