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Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums > Technical Forum > Engine / Exhaust / Cooling > No oil in the sight glass
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post #1 of 11 (permalink) Old 03-10-2018, 05:14 PM Thread Starter
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No oil in the sight glass
Changed my oil put 4 quarts of oil in it and I don’t see anything in the sight class should I add more oil the bike is on it center stand I’m not able to start the bike because I have the carb pulled and rust in the tank
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post #2 of 11 (permalink) Old 03-10-2018, 05:44 PM
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Are you sure it isn't showing overfull? Should be an air bubble at the top once the level is correct. 4qts with a filter change, and not started, it would look overfull.

With no oil, you should be able to see the silver case, and some of the cast lines in it.

Use a flashlight and see what you have.
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Last edited by Spockster; 03-10-2018 at 07:33 PM. Reason: filter
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post #3 of 11 (permalink) Old 03-10-2018, 07:37 PM
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Thought I would give you a heads up for after you get it running .....

The oil in this engine gets "air entrainment" on cold starts. If you start it cold, run just a minute or two, then shut it off, the oil in the sight glass will look milky like it has water in it. That's normal and goes away after the oil gets hot.
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post #4 of 11 (permalink) Old 03-10-2018, 08:44 PM
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typical change with filter is just shy of 4 qts.. LIke said above, it might be over full
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post #5 of 11 (permalink) Old 03-11-2018, 03:02 PM
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typical change with filter is just shy of 4 qts.. LIke said above, it might be over full
...maybe if taken off center stand, lean the bike to the right a bubble may appear.
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post #6 of 11 (permalink) Old 03-11-2018, 08:53 PM Thread Starter
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This is what I got after 4 qts
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post #7 of 11 (permalink) Old 03-11-2018, 09:33 PM
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Yep. Over filled. See the brown tinge? Should be clear if empty.
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post #8 of 11 (permalink) Old 03-11-2018, 09:49 PM Thread Starter
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I’m sorry I don’t follow brown tinge ?
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post #9 of 11 (permalink) Old 03-11-2018, 10:01 PM
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The brownish tinge when you look at the metal in the sight glass. It should be completely silver if you were out of oil
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post #10 of 11 (permalink) Old 03-11-2018, 10:05 PM
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I’m sorry I don’t follow brown tinge ?
...fresh new oil will appear as brownish......no (low volume) oil, should appear as clear.
Originally WilliamTech
Since May 2011
86 VN750 13,700 mi -Stock -Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
Jardine Fwd Controls, Custom Fenders w/Rails
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery, Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !

...have a Vulcan good day !
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