I would like to winterize my 2003 yamaha hpdi motor my self but the manual says doing it like a regular carburated engine I dont want the injectors to get clogged or ruin my oxygen sensor I was told that you can adapt the fogging can to a schrader valve on evinrude motors and i did locate a schrader valve on my yamaha is that the same it seem to be located on top of the oil injector any help on fogging this new motor will be helpful without using a dealership to do the work