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Honda XR250, 2000, engine uses oil
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Max_2
Apr 25, 2002, 2:12:32 AM4/25/02
to
I need some help with my XR, it uses about 1 quart of oil every 10 miles. I
just rebuilt the engine, I have about 35 miles on the new piston and rings
(wisco .002 over). The engine used a lot of oil before the rebuild as well.
There seems to be some blow bye coming out of the vent tube, but not a lot.
I keep thinking that the rings have not seated good yet but, I rode it today
a few miles and it felt like it was going to lock up on me, it still had oil
in it though.
PS I have not set the valve clearance yet.
just rebuilt the engine, I have about 35 miles on the new piston and rings
(wisco .002 over). The engine used a lot of oil before the rebuild as well.
There seems to be some blow bye coming out of the vent tube, but not a lot.
I keep thinking that the rings have not seated good yet but, I rode it today
a few miles and it felt like it was going to lock up on me, it still had oil
in it though.
PS I have not set the valve clearance yet.
Any suggestions on why it still uses oil?
Thanks
Max
ReAssembler
Apr 25, 2002, 4:49:20 AM4/25/02
to
"Max_2" <M...@hotmail.com> wrote in message
news:aa7ve...@enews1.newsguy.com...
Give it more time to "run in", the parts need to work themselves
together.
Ninebal310
Apr 25, 2002, 6:54:21 AM4/25/02
to
Bullshit! Take it to a professional. You have done something wrong! No
engine should use a quart of oil in 10 miles. AND, if it uses oil now, it will
only get worse, there is no need to give it time to "run in".
Hustlin' Hank
ReAssembler
Apr 25, 2002, 7:35:02 AM4/25/02
to
"Ninebal310" <nineb...@aol.committed> wrote in message
news:20020425065421...@mb-fr.aol.com...
pouring out the exhaust. He was making a point, and I made mine. it
takes hundreds of miles to break in new parts. Go take a nap.
Ninebal310
Apr 25, 2002, 9:09:57 AM4/25/02
to
>From: "ReAssembler" ti...@junkmail.com
>Bullshit yourself, hank, if he was using that much oil, it would be
>pouring out the exhaust. He was making a point, and I made mine. it
>takes hundreds of miles to break in new parts. Go take a nap.
>
I think he was talking about an XR-250. They are designed to race! You don't
have to spend hundreds of miles "breaking them in".
Maybe he was exagerating his oil consumption, I don't know. But anyway, He
should be able to go at least 1200 miles before he uses a quart of oil.
Anything less means there is something drastically wrong and a "break in"
period (as you suggested) won't help.
It never hurts to break in an engine. But these XR-250's, among others, are
great little power plants that are pretty well made and dependable right out of
the box.
Hustlin' Hank
ReAssembler
Apr 25, 2002, 7:50:41 PM4/25/02
to
> I think he was talking about an XR-250. They are designed to
race! You don't
> have to spend hundreds of miles "breaking them in".
>
> Maybe he was exagerating his oil consumption, I don't know. But
anyway, He
> should be able to go at least 1200 miles before he uses a quart of
oil.
> Anything less means there is something drastically wrong and a
"break in"
> period (as you suggested) won't help.
>
> It never hurts to break in an engine. But these XR-250's, among
others, are
> great little power plants that are pretty well made and dependable
right out of
> the box.
>
>
> Hustlin' Hank
All right, I thought 35 miles was too soon to panic, but yourrace! You don't
> have to spend hundreds of miles "breaking them in".
>
> Maybe he was exagerating his oil consumption, I don't know. But
anyway, He
> should be able to go at least 1200 miles before he uses a quart of
oil.
> Anything less means there is something drastically wrong and a
"break in"
> period (as you suggested) won't help.
>
> It never hurts to break in an engine. But these XR-250's, among
others, are
> great little power plants that are pretty well made and dependable
right out of
> the box.
>
>
> Hustlin' Hank
arguments are persuasive. I think you're probably right.
BILL SOMMER
Apr 26, 2002, 2:57:15 PM4/26/02
to
Did you,by any chance leave out an o'ring around one of the cylinder stud
holes that move oil UP to the valve/cam area? The oil could be diverting to
the cylinder and out the exhaust. ALSO this could mean there is insufficient
oil getting to the cam which could be why the "LOCK UP" feeling. (DRY CAM
BEARINGS,this is a major owie) There should be pools of oil in those little
low areas on top of the head.
Some models also had barrel gaskets that could be installed "flipped
over"which would block that oil passage. But I think that would not cause
oil usage.Just valve train problems.See major owie,above :(
I have seen improper assembly cause the top end to self destruct in
minutes. Indeed seek professional help!
The oil usage before the rebuild could have been bad rings.
The blow by out the vent tube is normal. When the piston moves down on
the power stroke,it is pushing the same amount of air that it sucked in when
sucking in the fuel air mixture prior to firing.
All that air has to go some where or it would blow up your cases. (Not
really but there would be enough pressure under the piston to slow it down
and oil would be forced out of every possible joint or gasket.)
Hope there is good news for you.
Bill
holes that move oil UP to the valve/cam area? The oil could be diverting to
the cylinder and out the exhaust. ALSO this could mean there is insufficient
oil getting to the cam which could be why the "LOCK UP" feeling. (DRY CAM
BEARINGS,this is a major owie) There should be pools of oil in those little
low areas on top of the head.
Some models also had barrel gaskets that could be installed "flipped
over"which would block that oil passage. But I think that would not cause
oil usage.Just valve train problems.See major owie,above :(
I have seen improper assembly cause the top end to self destruct in
minutes. Indeed seek professional help!
The oil usage before the rebuild could have been bad rings.
The blow by out the vent tube is normal. When the piston moves down on
the power stroke,it is pushing the same amount of air that it sucked in when
sucking in the fuel air mixture prior to firing.
All that air has to go some where or it would blow up your cases. (Not
really but there would be enough pressure under the piston to slow it down
and oil would be forced out of every possible joint or gasket.)
Hope there is good news for you.
Bill
"Max_2" <M...@hotmail.com> wrote in message
news:aa7ve...@enews1.newsguy.com...
Max_2
Apr 27, 2002, 4:51:54 AM4/27/02
to
Bill;
I did not see an o'ring on the stud holes, so I could have left them out. I
have a honda manual for the bike, and I don't see the 0'ring shown any
where. Each of the head bolts did have a washer though, which I installed.
I have seen some oil around the exhaust though.
I think the older XR's did have an o'ring but I am not sure on the 2000
models?
I plan to take it apart again soon to check it out, is there any thing else
I should look for?
Note: The gaskets I used seemed to only fit one way.
Thanks to all for your suggestions.
Max
BILL SOMMER <maic...@goldrush.com> wrote in message
news:3cc9...@quicksilver.goldrush.com...
Bob Smith
Apr 27, 2002, 6:29:35 AM4/27/02
to
get a pair of goggles=red hankie, -hang on
BILL SOMMER
Apr 27, 2002, 3:51:00 PM4/27/02
to
My mistake, I was thinking of older models.Yours uses that pipe system to
move oil around.
Any way,when you look in through the valve adjustment caps (or after you
take the head cover off) you should be able to see puddles of oil here and
there which would be an indication that oil is being pumped to the cam shaft
bearings.
The oil around the exhaust,I would assume is the result of the excess oil
usage. The engine must smoke like a two stroke when it runs,,,,,,No?
I believe you said you rebuilt it due to oil usage which I would think
would have been the result of worn rings.It's a puzzle why it got worse
after the rebuild unless something went wrong in the rebuild....Or the
increased compression is causing another worn part to fail?????????? (It is
also strange that a 2000 model XR is using oil.Must have a lot of miles on
it.)
You did mention that you had not adjusted the valves yet so I am assuming
you did not rebuild the head,as in regrind the valves etc. There are only a
couple of things I can think of that cause oil usage beside worn rings and
they are,Rings stuck in the piston groves or rings to small,,,,did you
rebore the cylinder?Did you check the ring end gaps in the bore before
installing them on the piston,,,,if the rings are wrong size,too small,or
the bore is worn, too large,,,,,,the end gap will be too wide and probably
not seat.If no rebore,you did break the glaze in the cylinder.Right? ALSO,
did you stagger the end gaps of the rings around the piston so there would
not be an open slot ,so to speak,down the side of the piston? Check the
manual.
Back to the valve job.There are valve stem seals that install on the
stems and go over the guides to keep top end oil from getting sucked into
the cumbustion chamber.Not sure if these can be checked visually.Maybe peer
through the valve spring coils to see if one or more are burned or broken.
About all I can offer is to check everything carefully and go by the
specs in your manual. A compression check might be helpful.If compression
is way low,it would seem to me that rings or cylinder wear are the problem.
(OOPS or a valve not closing,but see last sentence). If compression is close
to normal,it could be those valve stem seals causing the oil usage. Maybe
fried by a badly overheated engine?? From my experience if the valves were
burnt or missadjusted,the engine would be VERY HARD to start if at all.
Hint:are you aware that Honda sells 4 stroke gaskets in sets ? Set A for
the top end and set B for the bottom. They are cheaper than buying each
gasket individually. But individually equals more profit for the dealer. Ask
the parts guy.
If you did buy a kit then you should have a set of those guide seals
already.
Hope I was helpful I know how frustrating these things can be. I do all
the work on my bikes.(4 four strokes and 12 two strokes.)
Bill
----- Original Message -----
From: "Max_2" <M...@hotmail.com>
To: "BILL SOMMER" <maic...@goldrush.com>
Sent: Saturday, April 27, 2002 1:46 AM
Subject: Re: Honda XR250, 2000, engine uses oil
move oil around.
Any way,when you look in through the valve adjustment caps (or after you
take the head cover off) you should be able to see puddles of oil here and
there which would be an indication that oil is being pumped to the cam shaft
bearings.
The oil around the exhaust,I would assume is the result of the excess oil
usage. The engine must smoke like a two stroke when it runs,,,,,,No?
I believe you said you rebuilt it due to oil usage which I would think
would have been the result of worn rings.It's a puzzle why it got worse
after the rebuild unless something went wrong in the rebuild....Or the
increased compression is causing another worn part to fail?????????? (It is
also strange that a 2000 model XR is using oil.Must have a lot of miles on
it.)
You did mention that you had not adjusted the valves yet so I am assuming
you did not rebuild the head,as in regrind the valves etc. There are only a
couple of things I can think of that cause oil usage beside worn rings and
they are,Rings stuck in the piston groves or rings to small,,,,did you
rebore the cylinder?Did you check the ring end gaps in the bore before
installing them on the piston,,,,if the rings are wrong size,too small,or
the bore is worn, too large,,,,,,the end gap will be too wide and probably
not seat.If no rebore,you did break the glaze in the cylinder.Right? ALSO,
did you stagger the end gaps of the rings around the piston so there would
not be an open slot ,so to speak,down the side of the piston? Check the
manual.
Back to the valve job.There are valve stem seals that install on the
stems and go over the guides to keep top end oil from getting sucked into
the cumbustion chamber.Not sure if these can be checked visually.Maybe peer
through the valve spring coils to see if one or more are burned or broken.
About all I can offer is to check everything carefully and go by the
specs in your manual. A compression check might be helpful.If compression
is way low,it would seem to me that rings or cylinder wear are the problem.
(OOPS or a valve not closing,but see last sentence). If compression is close
to normal,it could be those valve stem seals causing the oil usage. Maybe
fried by a badly overheated engine?? From my experience if the valves were
burnt or missadjusted,the engine would be VERY HARD to start if at all.
Hint:are you aware that Honda sells 4 stroke gaskets in sets ? Set A for
the top end and set B for the bottom. They are cheaper than buying each
gasket individually. But individually equals more profit for the dealer. Ask
the parts guy.
If you did buy a kit then you should have a set of those guide seals
already.
Hope I was helpful I know how frustrating these things can be. I do all
the work on my bikes.(4 four strokes and 12 two strokes.)
Bill
----- Original Message -----
From: "Max_2" <M...@hotmail.com>
To: "BILL SOMMER" <maic...@goldrush.com>
Sent: Saturday, April 27, 2002 1:46 AM
Subject: Re: Honda XR250, 2000, engine uses oil
"Max_2" <M...@hotmail.com> wrote in message
news:aa7ve...@enews1.newsguy.com...
Max Max
Apr 29, 2002, 2:51:38 AM4/29/02
to
I had the bike bored 20 over, I sent the cylinder off to have it done.
They sent me back all the parts I needed, new piston, rings, gaskets. I
hope they sent me the right rings. I did not work on the valves they looked
ok. I did space the ring groves out the best I could. I have not check the
compression, I don't have a metric adapter for my car compression gauge.
Any ideas on where to bye an adapter for it?
I have been thinking lately that the compression release may not be working
properly, could that cause the excessive oil usage?
I think the reality is that I must have messed the rings up installing them,
so I plan to take it apart again and check it. I always do the work my
self, but sometimes it takes me a while to get it right. I have done a few
other overhauls before.
Thanks for all your help, its good to talk to someone about it that does not
charge by the hour.
They sent me back all the parts I needed, new piston, rings, gaskets. I
hope they sent me the right rings. I did not work on the valves they looked
ok. I did space the ring groves out the best I could. I have not check the
compression, I don't have a metric adapter for my car compression gauge.
Any ideas on where to bye an adapter for it?
I have been thinking lately that the compression release may not be working
properly, could that cause the excessive oil usage?
I think the reality is that I must have messed the rings up installing them,
so I plan to take it apart again and check it. I always do the work my
self, but sometimes it takes me a while to get it right. I have done a few
other overhauls before.
Thanks for all your help, its good to talk to someone about it that does not
charge by the hour.
Thanks again.
Max
BILL SOMMER <maic...@goldrush.com> wrote in message
news:3ccb...@quicksilver.goldrush.com...
gon...@gmail.com
Apr 18, 2017, 9:08:20 PM4/18/17
to
i have a 2002 xr250r thats using a 1/2 quart every time other time i ride it but it only smokes a little on start up and starts first kick every time plug looks ok not covered in oil and is lightish to medium brown color it starts great and runs great idles fine even starts good when hot im assuming the valves are bad
The Older Gentleman
Apr 19, 2017, 1:39:35 AM4/19/17
to
<snip>
Why are you replying to a post that is fifteen years old?
--
Kawasaki Ninja H2 Honda CB400 Four CD200 CG125
BMW R60/6 & R100RS 660 Tenere Street Triple
More garages needed....
neil underscore murray at fastmail dot fm
Why are you replying to a post that is fifteen years old?
--
Kawasaki Ninja H2 Honda CB400 Four CD200 CG125
BMW R60/6 & R100RS 660 Tenere Street Triple
More garages needed....
neil underscore murray at fastmail dot fm
Rob Kleinschmidt
May 21, 2017, 1:12:00 PM5/21/17
to
On Tuesday, April 18, 2017 at 10:39:35 PM UTC-7, TOG@Toil wrote:
> <gon...@gmail.com> wrote:
>
> > i have a 2002 xr250r
>
> <snip>
>
> Why are you replying to a post that is fifteen years old?
Because it is there ? (I probably should have waited a couple of years to respond to your post).
> <gon...@gmail.com> wrote:
>
> > i have a 2002 xr250r
>
> <snip>
>
> Why are you replying to a post that is fifteen years old?
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