Mercury Force 9.9, 15HP Outboards Service Manual, Page 8Get this manual
SPECIFICATIONS1990, 19911992 9.9H .PISO Prop Shaft Ho rsepower RECOMM ENDED OP ERATING RANGE IDLE RPM IN GEAR ENGINE TYPE BORE and STRO KE 9.9 5000 RPM 4500-5500 RPM 600-700 RPM
15 H,P156000RPM 5500-6500 RPM 600-700 RPM
T wo cycle, two cyl inder
T wo cycle, two cylinder
2.25 1.94 in(57.1 49.2 mm)
2.25 1.94 in (57 .1 49.2 mm )
15.41 cu in(252.5 ee)
125-135 PS (861.84-930.78 kPa) L82YC
DISPLACEMENT
COMPR ESS ION SPARK PLUG SPARK PLU GAP TIMING WIDE PEN THROTTLE