Nippy crankcase jets.

[Ian Williams]

Hi Robert, are you using a Nippy crank of has it been updated with a Phoenix of similar? I have had a couple of Nippy cranks pass through my hands and they appear to have very small oil galleries, I opened them out and radiused the entry as one would do with a splash Phoenix. I am afraid that I don't recall noticing a difference in the jets, but that not to say there is not one, I would apply the same thinking you would for any other sporting splash engine, good alignment and high volume. .