So I posted this in the Sportster section but no luck with responses. This bike is a 2001 Sportster 1200 Custom. I removed a few parts for painting and yes I was a dumb *** and failed to remember how this hose was routed. I believe its the transmission vent line but a little help for a lost brother would be cool.

 

That's an awfully long trans vent hose. My Ultra's hose is no longer than 1.5" and just curls up and faces right down into the case. I don't think it matters how it's routed and if it's truly a vent hose you may want to cut it down.

 

That's the trans. vent line alright. It routes up behind the battery box/under the seat and terminates around the area at the back of the battery before the rear fender.

Make sure to route it up high like it's supposed to be, as there were several issues of oil getting everyone on low mounted vent lines.

 

Ultra is a totally different beast. It is long for a reason, usually to get residue past the frame section and away from the rear tire. Just don't pinch it or you'll end up blowing seals. Definitely don't cut it, and face the open end of the hose rearward not forward.

 

thanks much for confirming my thoughts

 

my 06 fatboy 88 c i started leaking fluid from slack adj. on the clutch cable yesterday after a long ride all i can find out is it s either an o ring or vent tube blockage not sure where the vent tube is i'm handy with a wrench and would like to handle this myself any help with location of this tube would be appreciated a photo would be most helpful thanks

 

I can tell you the vent line on my '09 softail is on the transmission top cover. If it gets plugged then the fluid will leak where you mentioned.