Street Twin Oil Leak

?

 

Italian translation from t'tinternet:

Hi does anyone know what this hole in the middle of the cup is for? I took some pictures on the net and maybe an overpressure valve passes inside? because every now and then I find a drop of oil there, the bike is under warranty and 400km but before having the whole cradle disassembled to take it apart I wanted to know what it is for.

It's the sump from a Street Twin or Speed Twin or T120 or Bobber thingies - edit: damn just saw the title Silly Arse

The little hole is to carry any overspill from the water pump. It has a couple of 'o' rings to keep it away from the oil while the water leaks out through the sump. Maybe the 'o' rings need replacing (number 5 on diagram)

Italian version;

Il piccolo foro serve per trasportare eventuali fuoriuscite dalla pompa dell'acqua. Ha un paio di "o" ring per tenerlo lontano dall'olio mentre l'acqua fuoriesce dalla coppa. Forse gli "o" ring devono essere sostituiti (numero 5 nel diagramma)



(I think that was jolly fine of me as I actually know nothing about the new Thailand models, or any Italian. So I may be a mile wide) Over...