xr200r burning oil

[glhman222]

i have a 2000 xr200r that is burning massive amounts of oil and i mean after a short run (like 5 mninutes) the muffler will actually pour out burned oil we rebuilt the motor with a bigger piston and new rings gaskets o rings and timing chain and tensioners
oil is not getting into the crank case so i guess its coming from the top, we installed all gaskets and the o ring on one stud and its still smoking ARGH im so mad i need help please ive also honed the cylinder and all that suff yada yada yada i dont have any parts left over so whats up with that if i dont get a replie im gona spend up to 500 dollars in mechanic work

 

[confusedtech]

Was it smoking and burning oil before you built it? Did you install the oil rings correctly?Did you have trouble getting the cylinder back over the piston rings?Did you hone it too much?What about the valves and guides were they worn?

 

[glhman222]

no, yes,no, no, brand new and had to replace bent valve (EXHAUST) and al hardware assosiated, also replaced seals and had valve job on both valves

 

[confusedtech]

what bent the valve? did you have a (good) machinist put in new guides? or maybe the old guide is still in there and damaged from removing the bent valve or even worse the head could have gotten damaged. There are alot of variables that could have happened. piston pin clip come out and damage cylinder after assembly.

 

[glhman222]

i dont know, yes, nope deffinatly replaced, head is not damaged, and piston clips have never came out / clyinder is perfect bit of a brain buster huh i cant figure it out either and im pissed off

 

[confusedtech]

I know you wont like it but you might as well tear it back apart and inspect every piece of the top end. The problem is there since it wasnt doing it before.

 

[Rich Rohrich]

What you are describing sounds like the second compression ring is in upside down.

In a two compression ring four-stroke design the second ring works as an oil scraper. If you put it in upside down, instead of scraping oil off the walls and into the sump, it goes the other direction and drags the oil into the combustion chamber.

That's why the second ring always has a mark on the side that has to go up. The mark is small and it's easy to miss.

It's really easy to make this mistake (people do it all the time) , and you can't tell it's a problem till it's all together and pumping oil like mad.

 

[glhman222]

if the ring was upside down wouldnt it also drag gasoline into the crank case?

 

[Rich Rohrich]

if the ring was upside down wouldnt it also drag gasoline into the crank case?

Nope. The top compression ring, if it's doing it's job, seals the combustion chamber from the sump.

 

[glhman222]

ah ha ok well thanks i will check it out later this week to see if it is indeed up side down

 

[76GMC1500]

Had a dealer, whom I guess will remain namless, put a ring in upside down on my Yamaha TT225. I think it was the top ring, if I remember correctly. It made the bike smoke A LOT until it got some heat in it. It filled my parent's entire property with thick blue smoke. After a minutes or 2 it would stop.

 

[glhman222]

uh oh maby that wasnt my problem it still does it (sad face) and i waited a minute or 2 and even rode it for about 10 minutes (got really really hot) still no luck smokes like crazy still, also its white smoke not blue and

 

[Bodge]

How much oil are you putting in it?