FROM http://continuouswave.com/whaler/reference/BRP/SparkPlugChart2008.pdf
E-TEC Models
E-TEC 40, 50, 60 2004 - 2005 QC12PEP .030
E-TEC 40, 50, 60 2006 - 2007 QC12PEPB .030
E-TEC 40, 50, 60 2008 & newer QC10WEP .030
E-TEC 65 Jet 2005 QC12PEP .030
E-TEC 65 Commercial 2008 & newer QC10WEP .030
E-TEC 75, 90 2004 - 2005 QC12PEP .030
E-TEC 75, 90 2006 - 2007 QC12PEPB .030
E-TEC 75, 90, Commercial 2008 & newer QC10WEP .030
E-TEC 90 2004 - 2005 QC12PEP .030
E-TEC 90 2006 - 2007 QC12PEPB .030
E-TEC 90, 90 Commercial 2008 & newer QC10WEP .030
E-TEC 115 2007 QC10PEPB .028
E-TEC 150, 175, 200 (60º V6) 2007 QC10PEPB .028
E-TEC 200, 225, 250 (90º V6, incl. HO) 2005 - 2006 Was QC10PEPB Changed to QC10WEP .028
E-TEC 200, 225, 250 (90º V6, incl. HO) 2006 & newer QC10WEP .028
E-TEC 250 HO (90º V6, 3.4L) 2008 & newer QC8WEP .028
The recommended plug gap for the 1993 model, 3hp Evinrude outboard is .030 in.
.30
The Gap is .030
The correct spark plug gap for the 1994 model, 25 hp Evinrude outboard is .030 in.
The correct air gap is .032 in.
The correct gap would be .030 ln.
I use the QL77JC4 Champion plugs with a 0.030in gap.
The plug gap for the 35 hp Evinrude outboard is .030 in.
Spark plug gap on this engine is .030
http://www.boatsetup.com/SparkPlugChart.pdf states .030 (all years 2stroke)
The spark plug gap for a 2003 Mercury 125hp outboard motor is .040"
A Mercury outboard will run well with a plug gap of .035 - .040 in.