Question about 2005 Honda CRF 450 R
My CRF450 Honda is leaking engine oil through the carburetor, and through the little hole on the right side of the cylinder.
It sounds like your valve/rocker cover to spark plug tube seal is folded over or something. My reason for saying this is, because the only place for oil to get into the plug tube is a bad seal to the cover or the spark plug isn't tight? and that hole is for expelling liquid so it doesn't cook the plug into the head
Posted on Feb 19, 2009
Read your owners manual. the crank case breather tube has a plug on the end of it and needs to be drained periodically.if this is not done over time the tube fills with oil and then dumps into the intake tract.
Posted on Jul 20, 2010
I would change the pistions rings.
Posted on Dec 21, 2008
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Posted on Jan 02, 2017
You should not have oil leaking from the carby. If you have over filled it with oil, then it may be coming from the crankcase breather and then into the airbox, and appearing to come from the carby. If you have not over filled it, then the bike may have blowby problems with compression gasses passing the rings, and in a similar manner forcing oil out the crankcase breather. Not sure about the hole in the side of the cylinder... do you have a picture? Unless its pouring out, or gets worse, I would not be too worried. If you have over filled the oil, maybe time for an oil change to get the level right.
Posted on Dec 06, 2008
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