I just bout this bike it's a 1982 fxr 80 ci i seen this line plugged off i figured thats not rite so i need to know were it goes, i unpluged it with the engine running and it started puking oil,,any one have any idea's...thanks
My old eyeballs think it could be where some shade tree mechanic put in an oil pressure guage at some time. Unplugging it upsets crankcase pressure/oil pressure,, me thinks.
There was oil flow out of mine. Really freaks a guy out when he's starting a bike that has been sitting for an extended length of time, and oil starts gushing out of the air cleaner, when you are trying to fire it up for the first time/
I'm still leaning toward guage,, I'm thinking a vent would make the gears loose sucktion and oil drafting would stop....... Very interesting, let us know when you find out ! !