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OIl explodes from air intake

1.1K views 7 replies 5 participants last post by  bweighmaster  
#1 ·
HI I have a honda shadow 750 aero 2008.I haven't turn it on in like a year, took the air intake cover off to use some starter fluid and when the bike turn on pretty much my whole oil tank spilled out of the little hole in the air intake. anyone know why that would happen? Thank you
 
#4 ·
My guess is when you went to store the bike you either added too much oil (or filled it twice). If you have not changed the oil in a year may as well drain and refill and see how much comes out. Should be about 2.5Q when you change filter. You may not need new filter so 2.3Q
 
#7 ·
I heard an account of an engine "pumping oil out of every orifice" when the crankcase vent was blocked. However, this was not a Honda, and the engine had a "duckbill" one way breather valve that can exhale but not inhale. The tube leading from crankcase to breather valve had gotten folded over, and the crankcase became pressurized.