How to find a Air leak in the diesel line of a yanmar

The engine would run fine for a wile then it would stall out and have to be restarted, a problem that just got worse. As soon as the part arrives she will be for sale, this is a very competent and well looked after yacht

[@knighty875]

Kefelonia this year rudge?

[@Rudgeyakathedoctor]

I'm hoping so mate