Hey people, My gearbox has been smoking for a while, I realised that in the rain last week and tought it was just water evaporating. However It's not raining today and the smoke (exhaust gas) is coming out of the hose plugged into the top of the gearbox. I'm not sure what this hose is for, but i guess it's to drain oil split or something. I've seen the same on my DR350. Could anyone tell me what's the purpose of the hose (it's plugged at the top of the gearbox on one side and not plugged to anything at the other end). The hose is really oily. if i shake it some oil will fall from it. But I guess the smoke isn't something normal, however the bike is running properly, and I don't know since when it's smoking like that. Thanks for the help !