2003 Yamaha F115 - What does this hose attach to???

[LiteNup]

Hi Folks, I'm a newbie here, and working all angles of the web to try and improve on the F115. It tends to stall out right after start up. There is a little fuel in the exhaust (you can see and smell the rainbow sheen at the boat launch) and the last time I had it out I couldn't nurse the last 1,500 RMP's out of her when at WOT. So, I'm thinking/hoping this may have something to do with it? The tube is enlarged at the end as if it were meant to slip over a fitting or nipple.

Any help would be great! Thanks!
LiteNup

 

[Sea Rider]

Probably onto nothing, could be some sort of air/fuel vent related. Check if there's some kind of nipple next or very near to hose. To be 100% sure check the Spare Parts Manual...

Happy Boating

 

[82rude]

Look at this parts diagram.Is that hose number six?Follow it back ,if it attaches to the manifold then it attaches to the air box.https://www.megazip.net/zapchasti-d...61/f115-18476/f115tlrz-691536/intake-10712268