Doesn't this engine use a rim fire plug?
No gap to set on those.
I would say one per spark plug.
The dry weight of a 1993 year model, 9.9hp Mercury outboard is 69 lbs.
The 25 HP Mercury Outboard with serial number 9433215 year of manufacture is 1993.
The 25 HP Mercury Outboard with serial number 9433215 year of manufacture is 1993.
The recommended plug gap for the 1993 model, 3hp Evinrude outboard is .030 in.
A 9.9 hp Mercury outboard, serial number OD193606 would be a 1993 year model.
A 15 hp Mercury outboard, serial number OD248782 is a 1993 year model.
A 1993 model, 20 hp Mercury outboard, has a dry weight of 112 lbs.
about 1993.but depends on horse power
1993
According to one of Ford's websites : The spark plug gap for a 1993 Mercury Villager , 3.0 V6 is : ( .032 inch )
The recommended spark plug gap (per NGK) is .039"