I have just purchased a 1998 Wizard and they have done away with the oil pressure guage, I have to trust the computor to moniter that now.

It wont start unless there is a minimum pressure anyway.

just a thought with the oil prob you are having, have you changed the viscosity range at all? On mine it recomends 5w30 which is getting very thin when hot but older motors need a minimum of 10 at the bottom end of the scale, even 20 is common.

cheers