pequeajim, your engine is different than the two I have. I purchased both of mine new within the last year and are not dual plug. They both only have the fitting in the center of the cover which is the crankcase vent. Would you mind posting more pictures of this engine? Particularly the top of the head showing the plugs. Also the intake and exhaust (rear). And how about the right and left? While you are at it, I've never seen a view of the front of this engine either, so how about a shot of that? Just curious, thanks.