Well-Maintained 2005 Yamaha SX230 HO — 23-Foot Twin-Engine Jet Boat | Saint Louis, MO
A proven family sport boat with low hours, a documented maintenance history, and the prop-free safety of Yamaha's twin jet-drive system. At $15,500 with trailer included, this SX230 HO represents a compelling entry point into a 23-foot platform that punches well above its price.
The SX230 delivers a spacious, versatile layout: large open bow, wraparound seating, walkthrough transom, a generous rear swim platform, and in-floor ski/wakeboard storage. Whether you're pulling tubes, anchoring in a cove, or cruising for an evening, the layout works hard all day. An integrated cooler under the starboard bow seat, AM/FM CD stereo, and compartmentalized bow anchor round out the ready-to-use package.
This boat has been exclusively used in fresh water — a meaningful detail for long-term durability. The seller has performed a full oil change every year and winterized annually. Recent upkeep includes trailer tires and spare replaced one year ago, a new cover two years ago, and completely replaced trailer bunks two years ago. With only 302 engine hours, the twin Yamaha High Output 1052cc 4-stroke jet-drive engines have plenty of life remaining.
KEY FEATURES:
• Twin Yamaha High Output Jet-Drive — No Exposed Propeller
This SX230 is powered by twin Yamaha High Output 1052cc 4-stroke jet-drive engines producing 160 HP each (320 HP total). The absence of an exposed propeller is one of the most important safety advantages a family boat can offer — swimmers, kids, and tubers around the back of the boat face dramatically reduced risk compared to traditional prop-driven boats. Yamaha's jet-drive platform also delivers extremely shallow draft and instant throttle response, making it well-suited for sandbars, rivers, and busy swim areas.
• Freshwater Only with Annual Maintenance — Documented Care History
Used exclusively in fresh water throughout its life, this SX230 has been protected from the accelerated corrosion and wear that saltwater exposure causes. Combined with annual oil changes and consistent winterization, this is the kind of ownership history that significantly reduces risk for the next buyer. Yamaha jet boats are known for their reliability when properly maintained, and this one shows exactly that discipline.
• Large Rear Swim Platform with Walkthrough Transom
The SX230's rear swim platform is a standout feature of the model — wide, accessible, and designed for easy re-entry from the water. The walkthrough transom means you're not climbing over anything to get in or out, which matters enormously on a busy day with kids and guests. For families who spend as much time in the water as on the boat, this layout is a genuine quality-of-life upgrade.
POWER & DRIVE:
Twin Yamaha High Output 1052cc 4-stroke jet-drive engines | 160 HP each | 320 HP total | 302 hours | Gasoline | Jet propulsion (no propeller)
INCLUDED / UPGRADES:
- Trailer included (tires, spare, and bunks recently replaced)
- New boat cover (replaced 2 years ago)
- AM/FM CD stereo
- Integrated cooler under starboard bow seat
- In-floor ski/wakeboard storage
- Compartmentalized bow anchor
- Large storage areas throughout
LOCATION: Saint Louis, MO 63141. Freshwater use only. Trailer ready.
