2011 sx240 port engine has trouble starting in water.

[Ninedollars]

hello, both engine seems to work well. when starting outside while dry, it starts instantly. but when sitting in the water, the port engine takes 3-4 attempts to start completely while the starboard engine starts instantly. engine compartment bone dry. no issues after engine starts. does anyone have any clue to why?

 

[gt5pilot]

How long has it been since the plugs were changed? Pretty easy change to do.

Oil levels correct in both motors? Pretty easy check (do it when it is hot and on the water).

Do you have a YDS where you can connect and see what the fuel pressure is to both motors and read the sensors? There might be some clues there too.

 

[Ninedollars]

1. changed them maybe 3 months ago.

2. changed oil 3 months ago also. and levels are equal.

3. i do not have a yds. i will have to go get one i guess

its super weird because out of the water, they both start immediately. but in the water only the port has issues starting right away.