I have had the most annoying problem for months now. The petcock is dripping from somewhere that I just can't locate. I have pulled the tank, undone the tiny little screws on the front and taken the plastic and metal washers out as well as the O ring and all three look worn but I wouldn't know where to start looking for replacements. I just want to replace the whole damn petcock. I have found generic ones on eBay but I can't see how they would fit? Like this one: It doesn't have the oval shape of the OEM one though:
Edit: Here's the eBay link: http://www.ebay.co.uk/itm/Universal...785173?hash=item3d11cf05d5:g:UaYAAOSwFNZWwbd4
Call Hall's Husqvarna in Illinois, or visit their website and just order an OEM replacement. They are not that expensive. I just ordered one for a spare tank for my TE610 and they had a very quick turnaround time.