you need to find out what kinda gap the motor requires I guess. then use a gapper and gap them to spec. I always buy my plugs at clemens marina so i get the ones for the motor. been 3 different kinda plugs for the 4 outboards i have had. same one both 15's. call your local boat/outboard dealer/parts store. you would be suprised how much they know about these kinda things and then you can get the parts you need from them.
didn't get to the boat shop. My work wont let me return the others but i got them exchanged for the same ones i was looking for originally. Come to find out they are a. 05 gap. What effects would it have running those with a motor that wants a. 030. Should i just buy the gappable ones from the boat shop and use theses.as spare
ussually the ones that you buy at the boat shop will be gapped to what you need already. your work doesn't sell plugs that are gapped to what you need? couldn't you just get plugs and gap them yourself from your work? and were do you work that doesn't allow returns?