dralex
New member
Before I go guddling in dark holes with a torch, does anyone know the reduction ratio of a Yanmar 2GM20 gearbox from 1990, or are there lots of variations. The original gearbox went to a shaft drive and the original 2 blade folding Gori prop.
I have to post my old prop to a supplier so they can match it up.
Thanks
I have to post my old prop to a supplier so they can match it up.
Thanks