Owning a classic cruiser like the 2002 Hunter 380 “Sea Dragon” is a rewarding experience, but aging electrical and sanitation systems can eventually lead to frustrating days at the dock. If you are currently at Watergate Yachting Center (Pier 9) and dealing with a stubborn engine start or a broken Vacuflush head, you aren’t alone.
At Yes Centers, we specialize in mobile dockside repairs throughout Kemah, Clear Lake Shores, and Seabrook, ensuring your weekend plans stay on track.
Troubleshooting the Hunter 380: From Engines to Heads
Operating out of Watergate Marina, “Sea Dragon” is in a prime spot for Galveston Bay sailing, but these two specific issues—intermittent starting and a jammed head—are common for vessels of this vintage.
1. Why Your Engine Start Button Is Failing
When an engine takes multiple pushes to start but improves after the first run, it often points to a voltage drop or corrosion rather than a dead battery. For Hunters of this era (often paired with Yanmar diesels), we look for:
Wiring Harness Resistance: Over time, the factory wiring harness connectors can develop high resistance due to the humid Kemah salt air.
The “Hidden” Fuse/Relay: There is often a fuse or secondary relay in the start circuit that can become intermittent.
Starter Solenoid: If the battery is healthy, the solenoid might be sticking or failing to engage the “bendix” on the first try until it warms up.
2. Fixing the Vacuflush Ball Valve
A Vacuflush toilet is a high-performance system, but when the ball valve at the base stops moving with the foot pedal, it usually indicates a mechanical failure in the linkage.
Broken Ball Shaft: This is the most common culprit. The plastic or metal shaft connecting the pedal to the ball can snap or slip out of alignment.
Spring Cartridge Failure: The spring cartridge provides the “snap” that closes the ball. If this is worn, the ball won’t re-seal, causing you to lose vacuum pressure and run your pump continuously.
Pedal Linkage: We’ll inspect the foot pedal assembly to ensure the cam and lever are still engaging the internal drive.
Expert Mobile Boat Repair in Kemah & Surrounding Areas
Yes Centers provides expert dockside service to Watergate Yachting Center, Legend Point, and South Shore Harbour. Whether you are in League City, Texas City, or El Lago, our team brings the tools and diagnostic expertise directly to your slip.
Don’t let a “no-start” situation or a broken head ruin your time on the water. We can diagnose your electrical draw and rebuild your Vacuflush system right where you are.
Contact Yes Centers Today:
Address: 828 Marina Bay Dr, Kemah, TX 77565
Phone: +1 281-538-9377
Service Area: Every marina within a 30-mile radius of Kemah.
