Yanmar 3YM20 circuit diagram
by Peter Mercer
(Kingston-near -Lewes, Sussex, England)
We have recently had a Yanmar 3YM20 diesel engine installed in our Westerly Centaur. Does anyone know where I can get a circuit diagram for the engine wiring loom? I am finding this difficult, and we need to insert a splitter into the alternator output in order to be able to charge both batteries (auxillary and starter) without actually connecting them.