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OK to start after running water in non-running engine?

AndersBk

Member
Messages
15
Reaction score
1
Points
20
Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
21
Newbie here--was winterizing our 2007 AR210 for the first time yesterday and turned on port side engine key with water running. However, the previous owner / mechanic apparently switched the starter connection so it started the starboard engine instead. It took a few minutes (3?) before I realized what was going on and shut it off.

I immediately checked the plugs, didn't see any water. Also cranked the engine, no water. Checked the oil and didn't see any water mixed in. Checked the oil again this morning and didn't see water.

Question for all of you... it it safe to start the engine and flush correctly now? Or should I put seafoam in first and then start it? Anything else I should do? Should I take it out and run it on the lake one last time before winterizing now? Or ok to just run it on the hose? And last, if it cranked when the plugs were out does that mean we're not hydrolocked?
 
most likely if you do not see any water in the oil you are fine
 
Newbie here--was winterizing our 2007 AR210 for the first time yesterday and turned on port side engine key with water running. However, the previous owner / mechanic apparently switched the starter connection so it started the starboard engine instead. It took a few minutes (3?) before I realized what was going on and shut it off.

I immediately checked the plugs, didn't see any water. Also cranked the engine, no water. Checked the oil and didn't see any water mixed in. Checked the oil again this morning and didn't see water.

Question for all of you... it it safe to start the engine and flush correctly now? Or should I put seafoam in first and then start it? Anything else I should do? Should I take it out and run it on the lake one last time before winterizing now? Or ok to just run it on the hose? And last, if it cranked when the plugs were out does that mean we're not hydrolocked?
I hope you didn't have the water running before turning on the engine in the first place. Always make sure to start your engine before turning the water on
 
If nonwater came out the removed spark plug holes and no milky oil you’re fine.

You can winterize on the hose. No need to drive the boat on the lake. When adding stabil you can either add it to a full tank and drive around town or back roads or drive a few passes on the lake to let is slosh around for a few minutes in your full fuel tank.
 
Last edited:
kudos to you for knowing to pull the spark plugs and look for water before cranking the engine,

If no water from the spark plug then reinstall and try to run the engine,

many, many, many times we hear member who have the water turn on with the engine off or tow or even drive on one engine and then immediately crank the "off" engine and it runs without a problem,

I wouldn't be very concerned any damage occurred,,


.
 
In order for water to get into the engine it must completely fill the muffler first and than back it's way up the exhaust system to enter the engine so it takes a few minutes depending on the water pressure.
 
Thanks all, ran both engines the next day and it appears we dodged the bullet. Won't be making that mistake AGAIN!
 
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