.040
The fuel / oil ratio for the 1997 model, 25 hp. Mercury outboard, would be 50:1, this is roughly one pint of 2 cycle oil, to six gallons of fuel.
The serial / model number sticker on a 1997 model, 25 hp Mercury outboard is located on the starboard, (right) side of the swivel bracket.
The 1997 model, 6 hp Yamaha outboard, requires a 50:1 ratio, one pint of 2 cycle oil, to six gallons of fuel.
50 to 1
50:1. 16 ounces oil to 6 gallons gas
475 pounds
The plug gap for a 9.9hp Mercury outboard, ( all models ), is .035 - .040in.
The dry weight for a 1997 model, 40 hp Mercury outboard, is listed at 177 lbs.
location of relay blower motor 1997 Mercury mystique
The 1997 model Mercury, 225 hp EFI uses a NGK BR8HS plug, gapped to .035 in.
Model number J150OLEVR is a 1997, 150hp Johnson outboard.