Bike: 2005 CRF 450R
Problem: Transmission Oil into Engine Oil, and all the oil leaks out the breather tube (big problem).
Request: Can anyone suggest for me where to start.
I had the typical water pump problem with my bike. So recently I replaced all the bearings and seals for the counter balance shaft and water pump. Aside from the prior coolant leak I had no issues up until this point.
I started the bike went for a test ride, and after about a mile or two I checked the levels of all the fluids and notice that oil was coming out of the breather tube and in large quantity (not like a slow leak). I ride back and drain the oil, and its reddish. Just to make sure the oil wasn't just dirty, I put in the fresh stuff and go for another test ride. Same thing red mix out the breather tube..
So questions:
Did I put the seals in right? (Where can I find a reference to check.)
What other seals would blow out that would make the transmission oil travel over to the engine side and overfill the engine oil?
Are there any other things I should be checking?
Should I consider replacing all the seals?
On a side note, the bike engine runs strong. So I feel that there is no blowby around the piston. Spark plug is completely clean.