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How to Flush a Sea-Doo GTX

by Quinten Plummer

Sea-Doo's GTX line of personal watercraft features tilt steering, multiple speed settings, an on-board security system and a seating capacity of three. The GTX is designed to provide riders with comfort and minimal maintenance while spending hours out on the water. When it's time to winterize your GTX or store it for a few days, be sure to flush out its cooling system. The GTX's rear water outlet gives you the ability to flush out salt and other sediment from the inside of the cooling system.

Thread a water hose into the water outlet port on the back of your GTX. Turn on the engine and then turn on the water hose. Allow the engine to run for at least three minutes.

Spray Bombardier lubricant into the left side of the air intake silencer to keep the engine at a strong idle while flushing.

Turn off the GTX engine and then turn off the water hose after flushing the cooling system for at least three minutes. Pat the engine dry with a cloth.

Disconnect the spark plugs and plug them into the grounding terminals to the engine's north.

Turn on the engine and close the fuel valve. Spray the engine with Bombardier lubricant. Shut off the engine after a minute has passed.

Disconnect the spark plugs from the grounding terminals and spray the plugs with Bombardier lubricant. Turn on the engine for two or three seconds and turn it off. Spray spark plugs with anti-seize lubricant and reconnect the spark plugs to the engine.

Items you will need

  • Cloth
  • Bombardier lube
  • Anti-seize lube
  • Water hose

Tip

  • Don't flush your GTX until the engine has cooled and you're done riding it for the day.

About the Author

Quinten Plummer began writing professionally in 2008. He has more than six years in the technology field including five years in retail electronics and a year in technical support. Plummer gained his experience in music by producing for various hip-hop acts and as lead guitarist for a band. He now works as a reporter for a daily newspaper.