Hey everyone,
I’ve just bought a Honda CBR600 F4i,2001.
Today I took the fairing off to do an oil change,as I removed the left hand side,one of the three vent/ drain hoses that pass through the open guide at the bottom of the fairing came with the fairing,it couldn’t have been attached to whatever it vents/drains,because I removed the panel really gingerly,the hose is about 2 foot long.I tried to see where it had come from,but because everything is so compact,I couldn’t see where it goes,any ideas,thanks!

 

Fuel tank breather pipe possibly.
Best of luck mate.

 

It could be fuel tank breather hose (as wes 17 said,) fuel overflow hose, or coolant reservoir overflow hose. Check the reservoir first as it's easier access. Lift the tank and see if you see any unattached nipples.

 

Cheers lads,it’s a fat one,so I’m suspecting a breather off the tank,will lift it over the weekend,thanks again!