Best answer: How long can you run an outboard motor out of water

and it can run day in and day out. (Without coolant and you risk damaging the neoprene impeller in the waterpump after about 30 seconds. Take that out of the equation and the engine is good for 3-5 minutes.) If you run an inboard out of the water you need to be very aware of the prop under the boat.

Is it bad to run an outboard without water?

You can run an outboard for a very short time out of water, but the impeller is running dry and will shred very rapidly.

Is it OK to run a boat motor out of water?

As it turns out, you can safely start your boat engine while out of the water as long as you have a properly connected water supply, like a garden hose attached to the water intake vent.

How long can an impeller run dry?

“A few years ago Suzuki actually did a study to see how long an impeller would last if you started the motor dry,” said Greenwood, “and it was about 20 or 30 seconds.”

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Can you run a Yamaha outboard out of water?

Unscrew the garden hose connector from the fitting on the lower cowling, hook up a hose to the connector, open the spigot and let the clean, fresh water wash the contaminants out of the outboard’s water passages for 10-15 minutes. … Do not start the outboard out of the water.

Should I leave my outboard motor up or down?

When you park the boat for the winter keep the motor trimmed or tilted down, especially if it’s outdoors. This will allow all of the water to drain out of the motor’s cooling system. If it’s tilted up, some water may remain in the motor, where it can freeze and cause a cracked block or a ruined water pump housing.

Can you run an outboard motor without a thermostat?

Yes, you can temporarily run your outboard without the thermostat and not harm the engine. No, you can not remove the thermostat and continue running the engine for long periods of time without causing harm to the engine. … Here is a brief breakdown of why the thermostat is so important.

How do you start an outboard motor that has been sitting?

Get some water to the engine via a garden hose. Then put on some ear muffs and let the water run for a couple of seconds. Prime up the fuel, turn the key, and hopefully, start and run the engine! If you are going to let the engine sit and run for a while, (which is a pretty good idea to do).

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How do I know if my impeller is bad?

Ignore the symptoms of an impeller in need of replacement only if you wish to purchase a new motor.

  1. The Maintenance Schedule. …
  2. When the Outboard Shows Signs of Overheating. …
  3. A Reduced Stream of Water at the Cooling Water Outlet. …
  4. The Impeller Has Been In Service for Three Years.

How often should impeller be changed?

You should check the impeller’s condition during Spring Commissioning and every 200 hours of operation. Correctly installed impellers may last for several years, but you should stick to a schedule of preventative instead of emergency maintenance.

Is it bad to dry start a boat?

General rule of thumb is a few seconds just to see if it starts and runs won’t hurt you but if you run it much longer you can chew up your water impeller and don’t rev it dry what ever you do!

How do you flush an outboard motor without a hose?

You can put a fresh water wash down system in ur boat and use it to flush your engine. You can put a fresh water wash down system in ur boat and use it to flush your engine.

How long should I flush my Yamaha outboard?

Built-In Flushing Device

Connect the hose to the flushing device fitting and turn on the faucet. Let the freshwater run through the motor for 15 minutes. When it’s complete, turn off the faucet and disconnect it. Place the cap back on the flush fitting as instructed in your owner’s manual.

How often should an outboard impeller be replaced?

It’s good outboard maintenance practice to check your water pump impeller every season, and replace it every two to three seasons.

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