Breather smoke

[Peteortiz11]

Hey Y'all, so I noticed some smoke coming from the valve cover engine breather recently, probably caused by some blow-by, but has anyone had any luck with some of the additives on the market like Rislone ring seal or the like?

[Big T]

No additives, many are bad for the clutch
have you checked to find out what kind of smoke it is?

[Nessism]

Some vapor out of the breather is normal. There should be a tube connecting the breather to the airbox, so the fumes get recycled into the engine. If you have ditched the airbox, a catch can should be used to contain any condensation as the gas cools.

[Peteortiz11]

Thanks for the responses. the smoke smells kinda like exhaust. its not pouring out of the breather but if i'm at a red light, the smoke seeps up from under the tank. i dont have an airbox, i use K&N pods.

[salty_monk]

Yeah that's normal. You will pretty much always smell it with Pods. You can mount a catch can to the frame but it shouldn't throw out a lot. I put a mechanics towel (blue paper) folded up in mine to catch it & rarely have to change it.....

Check that the mesh in the valve cover is in place (remove the plate that the hose connects to and have a look, plate looks like an airplane in plan view), I imagine there would be a lot more coming out without that.

[bwringer]

Yep, you're describing a perfectly normal and healthy amount of crankcase vapor.