i have a 06 Yamaha Blaster and after i get done riding it in 4th-6th gear full throttle for a while i will stop to let it cool down, but when i do i notice that it has oil coming from the crankcase relief hose and i dont know if it is suposed to be doing that. i did try and plug it and the piging noise i have in the head went away but when i removed the hose i had a lot of pressure in the crank. so i was woundering if there is a way to keep the oil in the crankcase but let the air out.
OH YEA i just bought this bike 2 weeks ago and its my first 2 stroke so i dont know alot about 2 strokes.Should oil be coming out of my crankcase pressure releif hose after running in 4th-6th gear for awhile?
What mileage has the bike done? Excessive crankcase ventilation is a sign of worn rings.....you will normally get some fumes from the crankcase as the oil heats up,this is normal,its drawn back into the inlet manifold to be burnt off.Don't plug it,you'll end up blowing a main seal....Should oil be coming out of my crankcase pressure releif hose after running in 4th-6th gear for awhile?
No! Oil should never be coming out of the crankcase for ANY reason. You've got blowby from worn internal part that's causing excess pressure in your crankcase.
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