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Oil drain down on Yamaha 250 4.2L?

Old 09-13-2019, 05:55 PM
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Default Oil drain down on Yamaha 250 4.2L?

Hi All,

KW 239 FS

Wanted to see if my experience with this is normal.

I use a Topsider to suck the oil out ... Yamaha OEM filter ... refill to about a quart low by the book, crank up and run, then check oil level, then add as needed, then crank up and run, then check level.

Used the boat a few times, then it sits for a couple of months ... check the level before cranking and it is always about 2 1/2 inches high. Crank it up and run for few minutes, check oil level and is back to very near the top line.

Normal?
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Old 09-13-2019, 06:14 PM
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When you check your oil pull the dipstick, wipe it off, then check again. That first reading is always way high on my F250. Wipe it off and try again and it's spot on.
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Old 09-13-2019, 06:26 PM
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Originally Posted by stephenson View Post
Hi All,

KW 239 FS

Wanted to see if my experience with this is normal.

I use a Topsider to suck the oil out ... Yamaha OEM filter ... refill to about a quart low by the book, crank up and run, then check oil level, then add as needed, then crank up and run, then check level.

Used the boat a few times, then it sits for a couple of months ... check the level before cranking and it is always about 2 1/2 inches high. Crank it up and run for few minutes, check oil level and is back to very near the top line.

Normal?
Yes.
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Old 09-13-2019, 06:46 PM
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So, it is the oil filter draining down?
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Old 09-13-2019, 06:52 PM
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No, without starting it will drop if you recheck.
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Old 09-13-2019, 06:56 PM
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I did recheck ... left that out ... was high, but when started and then checked it was normal.
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Old 09-13-2019, 07:39 PM
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Originally Posted by STIPulation View Post
When you check your oil pull the dipstick, wipe it off, then check again. That first reading is always way high on my F250. Wipe it off and try again and it's spot on.
One more point. Before checking the oil tilt the motor up bout half way for a few minutes. Ensures motor within the block will flow back to the oil pan. Tilt the motor back to the vertical position. Then check the oil. After ignoring the first reading as you note.

In the case of my F200 at times there would no oil indication on the dip stick at all upon the first pull. Completely normal. Reinsert the dip stick and then the level would be accurate.
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Old 09-14-2019, 06:08 AM
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Unlike a car/truck where the oil filter is right side up, Yamaha's oil filter sits upside down meaning that the oil will drain when motor is not running. Once the motor starts, the oil then circulates thru-out the "system" and fills the filter. Then when checking, the oil level reads normal.
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