excessive oil blowing out of breather tube

[hookedonpain]

we are losing a quart per moto, no smoke blowing out of exhaust, compression was just checked and is supposedly ok. any suggestions
this is an 11.5 to 1 compression motor

[250r grave yard]

is that for your honda 450r might have a compression leak in your case halfs the 450r are made like the 2 strokes they have different lubracation oil for the tranny and the piston are seperated alowing for longer motor life oil may be to thin my 2 cents

[Jason Hall]

Is this a 450r??? If so, I would bet that the right side crank seal Is bad!!! Might want to check the bearing on that side also If It's a 04-05.

[Honda 250r 001]

defeneatly crank seals or a cracked case. Do a leak down and see if it holds up or falls on its face.