Connected an EP-60R Fuel Sender to my HDS5 unit today and it displayed 2.80 lph at idle after warm up around 1000rpm, this seems a little high to me. motor was rebuilt not too long ago cylinders were honed, new pistons, rings and fuel pump fitted as well as carbies cleaned and kitted then took it to the local service center for a link and sync. Not sure if it is a calibation or motor issue. Merc 60hp 2s '00.