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+--- Thread: Quick question... "drain tube"? (/showthread.php?tid=5673)
Quick question... "drain tube"? - quietguy_imp - 01-08-2016
I happened to notice, when taking a riding break this morning, two tubes hanging just behind the side stand. One's black and open at the end, the second is a clear tube with a secured cap.
What are these?
Sorry for my dumb questions, guys...
RE: Quick question... "drain tube"? - the Ferret - 01-08-2016
Emissions drain tubes to the best of my knowledge. tHere is another one up under the throttle bodies, short and L shaped. tHe clear ones are made to accumulate emmisions vapors which turn into fluids, and are supposed to be drained upon occassion when you see something in there. The black one I am not sure about but suspect it's some kind of breathing tube due to the slash cut
RE: Quick question... "drain tube"? - quietguy_imp - 01-08-2016
Ahhh, okay.. makes sense.
I remember reading in the owners book about the one in front of the throttle bodies.
I was kind of thinking the black one could possibly be an overflow outlet for the fuel tank. I know when I've refueled my bike, it's very easy to all of a sudden have the fuel level begin rising fast towards the filler opening. Mine's not had anything run out of it... yet
Thanks.
RE: Quick question... "drain tube"? - flynrider - 01-08-2016
I think the black (open) tube is a drain for the evap canister. The clear (capped) tube is a drain for the airbox. Due to the crankcase ventilation system, oil and moisture can collect in the airbox so it needs a drain. I generally uncap and drain it during oil changes.
RE: Quick question... "drain tube"? - quietguy_imp - 01-08-2016
I see... thanks.