Spewing oil - Page 4 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

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post #31 of 34 (permalink) Old 07-29-2019, 07:53 PM Thread Starter
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Originally Posted by Thorn View Post
Looks like that's just a pass-through, not a relief valve. Maybe some years are different on that detail.

Here's a shot of a vn750 valve with the ball. Looks like it would just vent out the side onto the ground in an over-pressure situation, or if the ball were stuck.

Mine is the same as yours, with no side hole.
So what does this mean, it's the oil pump right? Because nothing should be stopping it from building up pressure.

Last edited by Firstbike750; 07-29-2019 at 08:33 PM.
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post #32 of 34 (permalink) Old 07-29-2019, 09:04 PM
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So what does this mean, it's the oil pump right? Because nothing should be stopping it from building up pressure.
Yup. Since your oil light stays on it looks like either the pump is shot, the chain is broken, or the pump intake is clogged.

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post #33 of 34 (permalink) Old 07-29-2019, 10:15 PM
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Man, I'm sorry, I screwed up. That relief valve is under the stator cover. I got it mixed up when I looked it up earlier. I must've been hurrying to get out of this chair, back has been really bad the past week.

Crank it over several times with the oil switch removed, see what you get.

Hate that you spent time checking the wrong place because of my screw-up.

It's in 6-12 of this manual. http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Either way it looks bad, because the relief valve is under the stator cover, and oil pump is deep on the clutch side.

Seems I recall someone replacing the oil pump chain just by removing the clutch case, but to get the oil pump out, the manual says to "remove the crank".

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Last edited by Spockster; 07-29-2019 at 10:39 PM.
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post #34 of 34 (permalink) Old 07-30-2019, 06:28 PM
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The first time I rode my 95 Vulcan 750 after buying......(2003)....,
I had thought oil was too low so I filled it to upper line while engine was cold.
Bad idea.

12 miles later oil was sputtering out of both my air filter ears.

I drained oil down (perhaps a quart)
I had supplies).... cleaned up the mess.... cleaned everything mostly with carburetor cleaner, and refilled to correct level. I never had a problem again. That was 16 yrs ago.






Quote:
Originally Posted by Firstbike750 View Post
So a weird thing happened today. My bike started to overheat on my way to work. I pull over look at the sight glass. Low oil. I think to myself well shucks. Put oil in it, start it up, sounds good. I get on the interstate ride a few miles, I see the temp gauge start to rise. I feel warm fluid hitting my right leg and see oil coming out of the right air pod.
This leads me to pull over and call for a tow. I'm on the side of the I81 south now waiting, I cant help but wonder WTF happened. Did it get over filled with oil and backflow out through the air intake? Did I seriously f*** up my bike? What happened internet? Any insight would be great.

Ps there were quite a few motorcyclist that stopped by to check on me and gave me some water along with 2 state troopers. Shout out to the great people of the universe.
-the newb Firstbike
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