My trim guage never worked from new. McAleese Marine said they would sort it, but since I'll not probably be going back (service at £300 stg), it's likely that I'll have to do it myself. They reckoned it was something simple, like a disconnected wire on either the gauge or the sender. Checked the gauge end and it seems ok. But where is the sender at the engine end? No workshop manual available for the Merc 60 efi yet, although the Yamaha equivalent might do. Anybody any experience with either the Merc or Yamaha 60 efi's trim sender?