If the oil isn't overfilled I'd go back to Wolf Logan's suggestion of checking the breather system.  The breathers should be routed from the cylinder heads into the air cleaner or possibly into an aftermarket catch can.  Any blockage there would cause pressure to build up inside the crankcase which would eventually relieve itself through the oil tank cap.  There could also be blockage inside the rockerboxes.  It's worth pulling the rocker box covers to inspect the umbrella valves and such.

Hope this helps,
Mike
'04 XB12R

---

To: Buell_Tech@yahoogroups.com
From: jimderubeis@verizon.net
Date: Tue, 10 Nov 2009 12:33:25 -0600
Subject: Re: [Buell_Tech] Re: OIL FLow

 

Ray,

I jumped the gun on my reply to your problem.  I re-read your post and realize that you already tried less oil, more oil, etc.  Sorry about that.  I don't know what the problem might be but you might try to ask the good folks at Badweb in the Oldschool section, if you haven't already been there, done that.

http://www.badweatherbikers.com/buell/messages/47623/47623.html?1257874845

Jim


Ray Santiago wrote:

 

Thanks James, we have done the oil level thing and still, after some riding it blows the oil tank cap off. What else could you suggest we look at? Its not the bikes we ride Its not the groups we ride with Its not how often we ride Its not the destination Its the Journey Ride for those who cant --- On Mon, 11/9/09, James <jimderubeis@verizon.net> wrote: From: James <jimderubeis@verizon.net> Subject: [Buell_Tech] Re: OIL FLow To: Buell_Tech@yahoogroups.com Date: Monday, November 9, 2009, 7:09 PM   Ray, Are you sure it's just not overfilled? The oil is supposed to be checked fully warmed up, just after shut down. As it cools the oil will drain back out of the oil tank and appear empty. When you add oil to bring it up to the proper level on the dip stick you end up with way too much oil and it will blow the dipstick right out of the oil tank as you have described as you get on it or hit highway speeds. If that is what is happening don't feel too bad, it's a common occurrence when people are new to Tube framed Buells. I believe that the S3 is a two and a half quart system. If in doubt warm it up, drain it to be sure and add two quarts. One half quart will remain in the oil filter and oil passages. Then warm it up and check again and top off if necessary. It's better to run it a little low than a little high on oil because it will puke any excess oil out of the breather lines. JiM2 --- In Buell_Tech@yahoogro ups.com, "Diesel" <rsantiago35@ ...> wrote: > > I am working on a 99 Buell S3, the problem with the bike is when he gets up and running, he ends up blowing the oil tank cap and oil spill all over. He has had his bike at several shops, has had all kinds of stuff done, but still has the same problem. OIl lines have been changed, performance item put on/taken off. Can anyone give me any suggestions? they have tried less oil, the right amount, nothing seem to work. Thank You. > > > Ray >

---

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Thanks James, we have done the oil level thing and still, after some riding it blows the oil tank cap off. What else could you suggest we look at? Its not the bikes we ride Its not the groups we ride with Its not how often we ride Its not the destination Its the Journey Ride for those who cant --- On Mon, 11/9/09, James <jimderubeis@verizon.net> wrote: From: James <jimderubeis@verizon.net> Subject: [Buell_Tech] Re: OIL FLow To: Buell_Tech@yahoogroups.com Date: Monday, November 9, 2009, 7:09 PM   Ray, Are you sure it's just not overfilled? The oil is supposed to be checked fully warmed up, just after shut down. As it cools the oil will drain back out of the oil tank and appear empty. When you add oil to bring it up to the proper level on the dip stick you end up with way too much oil and it will blow the dipstick right out of the oil tank as you have described as you get on it or hit highway speeds. If that is what is happening don't feel too bad, it's a common occurrence when people are new to Tube framed Buells. I believe that the S3 is a two and a half quart system. If in doubt warm it up, drain it to be sure and add two quarts. One half quart will remain in the oil filter and oil passages. Then warm it up and check again and top off if necessary. It's better to run it a little low than a little high on oil because it will puke any excess oil out of the breather lines. JiM2 --- In Buell_Tech@yahoogro ups.com, "Diesel" <rsantiago35@ ...> wrote: > > I am working on a 99 Buell S3, the problem with the bike is when he gets up and running, he ends up blowing the oil tank cap and oil spill all over. He has had his bike at several shops, has had all kinds of stuff done, but still has the same problem. OIl lines have been changed, performance item put on/taken off. Can anyone give me any suggestions? they have tried less oil, the right amount, nothing seem to work. Thank You. > > > Ray >

Ray,

Are you sure it's just not overfilled?  The oil is supposed to be checked fully
warmed up, just after shut down.  As it cools the oil will drain back out of the
oil tank and appear empty.  When you add oil to bring it up to the proper level
on the dip stick you end up with way too much oil and it will blow the dipstick
right out of the oil tank as you have described as you get on it or hit highway
speeds.  If that is what is happening don't feel too bad, it's a common
occurrence when people are new to Tube framed Buells.  I believe that the S3 is
a two and a half quart system.  If in doubt warm it up, drain it to be sure and
add two quarts.  One half quart will remain in the oil filter and oil passages. 
Then warm it up and check again and top off if necessary.  It's better to run it
a little low than a little high on oil because it will puke any excess oil out
of the breather lines.

JiM2


--- In Buell_Tech@yahoogroups.com, "Diesel" <rsantiago35@...> wrote:
>
> I am working on a 99 Buell S3, the problem with the bike is when he gets up
and running, he ends up blowing the oil tank cap and oil spill all over. He has
had his bike at several shops, has had all kinds of stuff done, but still has
the same problem. OIl lines have been changed, performance item put on/taken
off. Can anyone give me any suggestions? they have tried less oil, the right
amount, nothing seem to work. Thank You.
>
>
> Ray
>

Ray,

Are you sure it's just not overfilled?  The oil is supposed to be checked fully
warmed up, just after shut down.  As it cools the oil will drain back out of the
oil tank and appear empty.  When you add oil to bring it up to the proper level
on the dip stick you end up with way too much oil and it will blow the dipstick
right out of the oil tank as you have described as you get on it or hit highway
speeds.  If that is what is happening don't feel too bad, it's a common
occurrence when people are new to Tube framed Buells.  I believe that the S3 is
a two and a half quart system.  If in doubt warm it up, drain it to be sure and
add two quarts.  One half quart will remain in the oil filter and oil passages. 
Then warm it up and check again and top off if necessary.  It's better to run it
a little low than a little high on oil because it will puke any excess oil out
of the breather lines.

JiM2


--- In Buell_Tech@yahoogroups.com, "Diesel" <rsantiago35@...> wrote:
>
> I am working on a 99 Buell S3, the problem with the bike is when he gets up
and running, he ends up blowing the oil tank cap and oil spill all over. He has
had his bike at several shops, has had all kinds of stuff done, but still has
the same problem. OIl lines have been changed, performance item put on/taken
off. Can anyone give me any suggestions? they have tried less oil, the right
amount, nothing seem to work. Thank You.
>
>
> Ray
>

At 05:47 AM 11/9/2009, you wrote:
>I am working on a 99 Buell S3, the problem with the bike is when he
>gets up and running, he ends up blowing the oil tank cap and oil
>spill all over. He has had his bike at several shops, has had all
>kinds of stuff done, but still has the same problem. OIl lines have
>been changed, performance item put on/taken off. Can anyone give me
>any suggestions? they have tried less oil, the right amount, nothing
>seem to work. Thank You.

Sounds like way to much blow-by, broken ring or piston possibly?

Ira

Seems like it's building pressure in the oil system, so that would lead
me to ask whether the oil breathers are blocked. Could be dirty (but
that's unlikely), could be faulty umbrella valves, could be somebody
decided to seal up the breathers so they don't leak oil mist, if it's
got a catch can, could be that the can's blocking airflow.


-----Original Message-----
From: Buell_Tech@yahoogroups.com [mailto:Buell_Tech@yahoogroups.com] On
Behalf Of Diesel
Sent: November-09-09 5:48 AM

I am working on a 99 Buell S3, the problem with the bike is when he gets
up and running, he ends up blowing the oil tank cap and oil spill all
over. He has had his bike at several shops, has had all kinds of stuff
done, but still has the same problem. OIl lines have been changed,
performance item put on/taken off. Can anyone give me any suggestions?
they have tried less oil, the right amount, nothing seem to work. Thank
You.

I am working on a 99 Buell S3, the problem with the bike is when he gets up and
running, he ends up blowing the oil tank cap and oil spill all over. He has had
his bike at several shops, has had all kinds of stuff done, but still has the
same problem. OIl lines have been changed, performance item put on/taken off.
Can anyone give me any suggestions? they have tried less oil, the right amount,
nothing seem to work. Thank You.


Ray