spewing oil !!!!

[jron]

My GS is gushing oil out of its brains!   There is a vent hose that comes from the valve cover area and goes into the airbox. Oil is coming out of this vent hose at a rate high enough to grease the back tire and turn it to a slick!  Something like a good steady drizzle of oil..

Does anyone know what causes this? What can I do to stop it!

Thanks,
-john

[yamahonkawazuki]

not sure, maybe the resident geniuses here can throw in some advice, never had that prob with mine, but... i would strongly caution AGAINST riding your bike until prob is corrected. slick tires on cars are bad enough. on bikes .....

[The Buddha]

My GS is gushing oil out of its brains!   There is a vent hose that comes from the valve cover area and goes into the airbox. Oil is coming out of this vent hose at a rate high enough to grease the back tire and turn it to a slick!  Something like a good steady drizzle of oil..

Does anyone know what causes this? What can I do to stop it!

Thanks,
-john

Over filling the oil so it makes contact with the crank, which in turn whips it up good and it ends up hitting the cam chain which just carries it like a freight train... If its pure oil. Also look if the funky metal scotch brite like thing is there in the valve cover, and if so, if its in the right place. If not oil will get out more easy.
If its a mix of gas, combustion by products, and some water and oil, then you got blow by. Take that hose off, and route it to the outside, plyg off the hole on the top of air box cos you dont want air entering there, and start the bike, and if its blowing air out that hose especially when cold... you got blow by. Run the motor till it gets hot... and now see if you still have a lot of air comming out... if so... blow by.
Cool.
Srinath.

[perfdrug]

and blow-by isn't good. definatly worst case scenario. definatly don't ride it anymore, until you do what sri said to do. update us with your results, and we'll try to help you.

[perfdrug]

oh, and put your hand in front of the hose when it's running. if you're feeling an abundance of air, then it's blowby. the head is supposed to be in vaccum when the engine is engaged (isn't it?) so technically no air should be escaping. If air is flowing out of the tube, that means the rings around the pistons aren't seated perfectly, and air is passing through the cylinders.

i may be wrong, but i'm just learning this stuff. please correct me if i'm wrong.

[Kerry]

Sounds like Job 1 is to check your oil level.  (Bike vertical, unscrew the dipstick, wipe it off, drop it back in the hole -- don't screw it in! -- check the level.)

If the oil level is significantly above the "F" mark, suck some out with a turkey baster.  (See the thread accidentally put a little to much oil in.)