hi again, i just fixed mine. if its the front part, the fuel injector with the 2 fuel pipes to it. the problem is the o ring on the inside. undo the 2 screws, and pull away the injector, there is an o ring on it, mine was split, i pulled the injector out while it was off as there is another o ring in there. these cost me 3.60 so nice and cheap. once fitted and the injector refitted the bike started no problem....hope this helps. i think it was the injector coming loose that split it.
paul n, December 2007