i have a sea king 5hp-mod#-gg18732b-ser#-36x880373--i don't know what year it is but i think the fuel mixture is 16 to 1, is this correct or not, i was told that means .5 pint to a gal of gas,-is this right or not, i would be thankful for the right information if anybody out there know's for sure,it came with a 3 gal tank. thank's