1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 151Get this manual
POWERHEAD
Model 689.91015
CYLINDER BLOCK Type Displacement (1994 Model) 9.9 9.9 Sailpower 10 Sea ProMarathon XRMAG10 15 Displacement (1995 and Newer) 9.9 9.9 Sailpower 10 Sea ProMarathon XRMAGViking 10 15 15 Sea ProMarathon Length Diameter (Standard)(1994 Model) Sailmate 9.9 9.9 Sailpower 10 Sea ProMarathon XRMag 10 15 Diameter (Standard)(1995 Model) 9.9 9.9 Sailpower 10 Sea ProMarathon XRMagViking 10 15 15 Sea ProMarathon TaperOut of Round Maximum Bore Type Top Main Bearing Journal Center Main Bearing Journal Bottom Ball Bearing Journal Connecting Rod Journal Runout Piston Pin End (I.D Crankpin End (I.D Piston Type Ring End Gap Reed Stand Open (Maximum) All Models Reed Stop Opening (Maximum) All Models Two-Stoke Cycle Cross Flow 209cc (12.8 cuin 209cc (12.8 cuin 209cc (12.8 cuin 209cc (12.8 cuin 262cc (16.0 cuin 262cc (16.0 cuin 262cc (16.0 cuin 262cc (16.0 cuin 262cc (16.0 cuin 262cc (16.0 cuin262cc (16.0 cuin 262cc (16.0 cuin 262cc (16.0 cuin 45.7mm (1.800 in 53.975mm (2.125 in 53.975mm (2.125 in 53.975mm (2.125 in 53.975mm (2.125 in 53.975mm (2.125 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 60.325mm (2.375 in 0.1016mm (0.004 in Cast Iron 19.1mm (0.7517 in 20.6mm (0.8108 in 20.0mm (0.7880 in 20.6mm (0.8125 in 0.076mm (0.003 in 20.8mm (0.8195 in 27.0mm (1.0635 in Aluminum 0.25 mm0.46 mm (0.010 in- 0.018 in 0.178mm (0.007 in 7.54mm (0.296 in