If any of you have oil coming out of your crank case breather hose the correct fix is to go to your local honda dealer and purchase the antisiphon from a TRX 450 it will catch the oil vapor and allow it to drip back into your motor .I just installed one and I have no oil leaking also I put a K&N fillter on the antisyphon so no dirt can get in.
Hope this helps.

 

What 450r part specifically are you asking for at the dealership?

 

It is the crank case breather hose antisiphone from a TRX 450 quad they are less than $ 20.00 I bought mine thrue Kelly at KMS # 602-442-4340 If you call him he will give you the part # from Honda.
Hope this helps.

 

Thanks!

 

5/16 fuel line and you can run it anywhere you want.I ran mine up front with
a filter.I have never had any oil come out so im not worried about any mess.
Some route it over the chain to lube it also.

 

That is exactly what I did with mine. Picked up about 6ft of hose from Autozone and ran it over the radiator, around the oil tank, and down between the middle of the frame and out the bottom. No filter or mess to deal with.