Oil capacity after rebuild - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 6 (permalink) Old 06-08-2019, 08:24 PM Thread Starter
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Oil capacity after rebuild

Hey guys I've got a real good question. I know the manual states 4L for oil change with filter, but how much after a complete rebuild? I ask because I got to 11 quarts without the slightest anything in my sure glass. Once I got 4 quarts in, I rolled the motor so I could get it cycled through all of the passages. But then let it sit for 30 min. I've now drained everything as I was afraid is over filled and never saw the in-between on the glass. Given I could clearly see the slot inside, I don't think this is the case but better safe than sorry. The bike is currently on my lift and centered straight up, much like belong on the center stand. When I say rebuild, I mean case split and everything. I appreciate any info!
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post #2 of 6 (permalink) Old 06-08-2019, 08:40 PM
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11qts is way too much.

Adding 4L probably will fill the sight glass completely until the oil filter gets full. Then there should be an air pocket at the top of glass, somewhere between the lines. With the engine running, the sight glass should look mostly empty, and fills back up after shutdown.

It will take the same amount of oil, even with a case split.

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post #3 of 6 (permalink) Old 06-08-2019, 08:52 PM Thread Starter
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That's kinda what I thought but I had absolutely nothing in the sight glass. That's the only reason I added more. I figured maybe worth the transmission and clutch being empty as well, it would take more. That's why I drained it again. Just didn't feel right.
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post #4 of 6 (permalink) Old 06-09-2019, 05:53 AM
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If the engine has been totally stripped it will take a fraction more than a oil and filter change but only a fraction more
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post #5 of 6 (permalink) Old 06-09-2019, 10:33 AM Thread Starter
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Ok. Thanks!
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post #6 of 6 (permalink) Old 06-09-2019, 10:45 AM
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With fresh, clean oil and a completely full sight glass, it can look like there's none at all showing. But it will look a bit smokey compared to when it's actually dry.

While we're looking at the sight glass .... Don't be alarmed if after a couple of minutes run time the oil looks milky, like it has water in it. This is a normal phenomenon due to a thing called "air entrainment". Air bubbles whipped into the oil. It goes away after the oil is warm. First engine I've seen it in though.

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__________________________________________________ ____________
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Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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