I have a 1996 omc 90hp I was wondering what spark plug to run as of now it has resistor plugs what should I be looking for as in the correct plug
As Chris1956 says there are several models for that HP/year.
The recommended plugs are:-
88, 90, 100, 110, 112, 115, 1979 - 1998, QL77JC4 or QL82C.
90, 115 (60º V4 Eagle), 1995 & newer, QL78YC (see note 3).
90, 115 TurboJet (90º crossflow V4), 1994 - 1997, QL77JC4 or QL82C (see note 3)
All are gapped at 0.030"
All the above are QL type, ie. inductively suppressed, NOT resistor plugs
(Note 3 states that all engines with VRO or OMS should use QL type plugs)