At least I think it is a 79 merc 350 35HP twin. model number 2341279.<br />It seems every year I end up with different plugs and I was wondering what is the correct spark plug for my merc. This year they sold me champion L76V and I have always had a gap plug, last year champion j6c or something like that. Any one know the correct one?. Thanks 
Richard A<br /><br />Thanks for the info <br />2300972 - 2487557 1968 2 cyl <br />mine 2341279 so I guess it is a 68 <br />it says '350' on the cowling, <br />therfore I am looking for a gap plug. They had two for my model one is slightly longer would that be normal. I would think the piston might hit it or something.<br />Richard A
Richard A<br /><br />Thanks for the info <br />2300972 - 2487557 1968 2 cyl <br />mine 2341279 so I guess it is a 68 <br />it says '350' on the cowling, <br />therfore I am looking for a gap plug. They had two for my model one is slightly longer would that be normal. I would think the piston might hit it or something.<br />Richard A