oil in air box

[lil red s-10]

hello all new to the forum i got a 04 raptor 350 with a 92 warrior engine in it and the crank case breather tube that goes from the case to the air box seems to blow alot of oil into the air box after a ride it dripps from the bottom of the air box what can i doto stop this
any help appreciated

 

[MotoArts]

It's called blowby.

Piston rings no longer seal to the cylinder well.
Probably needs top end rebuilt (oversize bore/piston/rings at least).

Or the crankcase is overfilled.

 

[Gen1Pat]

Doing a cylinder leak down test will comfirm excessive blowby.

 

[lil red s-10]

i know its got blow by lol it burns a tad bit of oil will it hurt to take it on rides until i gather the parts to do it and what about getting the stock jug bored? to a 366