Oil capacity - mine seems to take less...? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 14 (permalink) Old 09-21-2011, 02:06 PM Thread Starter
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Oil capacity - mine seems to take less...?

I know that the listed oil capacity for our bikes is 4 liters, which is about 4.2 quarts. And I know that when changing oil and such, I need to wait for the filter to fill up, etc. Thing is, even after doing all that, and waiting to check it again later, it seems as though my bike only takes about 3 quarts (if that) to get the oil to the midway point between the H and L levels on the sightglass.

From the sound of everyone's posts I read, 4 qts is the norm. So do most people run it with the level at the H on the sight glass? Is that why the amount I put in seems to be less?

I'm curious to see what everyone says here. I know the guy who owned it before me had it WAY overfull, and I don't want to stress the seals any more than they have already been. It doesn't leak a drop (which is good for an '89, eh?) and I would love to keep it that way.

Thanks all, and happy riding : )

AZ Kev

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1989 VN750
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Turned 11,000 mi Nov 2011
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post #2 of 14 (permalink) Old 09-21-2011, 02:09 PM
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I alway use the sight glass method. I go about 3/4 way up on the glass.

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post #3 of 14 (permalink) Old 09-21-2011, 02:19 PM
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Some people have said on here that you should leave just a bubble on top of the sight glass... it's supposed to help keep the stator cool.

Mine is kinda that way... a bit more than just a bubble on top, but definitely more than halfway full and I think a little bit more than 3/4 of the sight glass full.

Mine still doesn't seem to take the 4 liters though, it takes about one gallon, which would be 3.785 liters.
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post #4 of 14 (permalink) Old 09-21-2011, 02:47 PM Thread Starter
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That makes sense. And from all the horror stories I have read about stators, I am definitely willing to fill it a little more if it helps keep that thing cool! Lol

Thanks guys.


AZ Kev

Arizona Kev

1989 VN750
7800 orig mi when purchased Jan 2011
Turned 11,000 mi Nov 2011
Saddlebags
Taillight relocation kit
Chad's highway peg mounts
Emgo Pegs
Aftermarket mirrors
Dunlop D404's

Otherwise, all stock


"But it's a dry heat - like the inside of an oven"
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post #5 of 14 (permalink) Old 09-21-2011, 03:03 PM
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I have been putting 4 quarts of oil since I have had the bike. It is a little over the full mark when this is done but I think it does help keep the stator cooler at least a little. I have had the bike new from the start, it now has 17,500 miles and going strong.

2004 25,500 miles
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post #6 of 14 (permalink) Old 09-21-2011, 04:01 PM
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Ugghh!...yet another oil thread.....

When you drain your bike's oil, you never completely get it all out. The only way to get it all out is to overhaul the motor.

Thus, some will remain, with a normal oil drain and change.

Soooooo....to keep from overfilling your bike's crankcase, you'll add less than the stated oil capacity.

I generally fill mine so that when the bike is on level concrete and on the centerstand, it will still show an air bubble at the top of the oil sight glass, after sitting for a few days.

For me, this has been a little over 3 quarts. But I've been using one of the larger capacity oil filters. YMMV, especially if you use the smaller capacity oil filter size.

The purpose of the oil sight glass is to keep from under or overfilling the motor with oil, anyway.

Hope this helps.....

'05 VN750



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post #7 of 14 (permalink) Old 09-21-2011, 05:07 PM
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The suggested level is to fill to the very top of the sight glass. (with the bike straight and level)

This was from a note a Kawasaki technician wrote to the Yahoo group many years backed when we tried to get an answer on the whole 4 liter thing. It is likely a bit more oil than this is alot better than less oil than this....again due to the stator issue.

I know I always bought a gallon jug of Rottella and there was about a half cup left in the jug after a change.( I always change my filter when changing the oil)

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post #8 of 14 (permalink) Old 09-21-2011, 05:17 PM
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1 Gallon

I change filter with every oil change, and it seems that 1 gallon fills me to the top of the sight glass when sitting level (not centerstand). It takes a second person (to be safe) to hold the bike straight up, but was told by a Kawa mechanic this was A-OK. This is how they usually fill oil at the shop.

He also pointed out a couple interesting tidbits:
1. Bike branded oil in the US is sold by quart or gallon...even though the bikes specify oil by liters...no real explanation he knew of, just an oddity
2. The dealer will bill you for the amount of oil recommended for a change, but pretty much never uses that amount.
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post #9 of 14 (permalink) Old 09-22-2011, 03:43 PM Thread Starter
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Thanks for that explanation @theaukawk. I know, I know - the oil threads probably drive you and everyone bonko. But in my defense, I did search the forum for an answer, and didn't find one as concise, nor as logical, as the one you gave, so thank you.

I ended up putting a little more in last night to take it to just below the top of the sight glass.


AZ Kev

Arizona Kev

1989 VN750
7800 orig mi when purchased Jan 2011
Turned 11,000 mi Nov 2011
Saddlebags
Taillight relocation kit
Chad's highway peg mounts
Emgo Pegs
Aftermarket mirrors
Dunlop D404's

Otherwise, all stock


"But it's a dry heat - like the inside of an oven"
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post #10 of 14 (permalink) Old 09-23-2011, 09:36 AM
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Quote:
Originally Posted by hot_rod_hippie View Post
The dealer will bill you for the amount of oil recommended for a change, but pretty much never uses that amount.
Soooo typical. Just another reason to learn about and maintain/repair your own ride.

My .02, I put in 3 1/2 qt's and run it. Let it sit for a couple of minutes then top it right to the tip of the site glass. X2 on KM's input on keeping a little more in there since it's better for the stator

Dave

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