OK, so I replaced a lot of my hoses 2 years ago.. Dont I start it up yesterday and have a fuel leak near the filter!! Anyways.. When I replaced the petcock I used 1/2" hose, and it turs out it was a tiny bit big.. Worked fine when new 2 years ago, but now its really too loose. Im thinking the real size should be 12MM? Does that sound right? Also my local stores dont stock metric, so I will need to order in. Does anyone know what size the hose from the pump to the filter is? From the pump to the injecters? The leak is near the filter, so im replacing all the rest of the hoses and the filter on the bike.