1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 35Get this manual
Engine Specifications 45 Comm 55 CommOperation Full Throttle Operating Range Power Power Rated Idle RPM in Gear Test Wheel Minimum Test Wheel RPM Weight: Standard Length Long Shaft Extra Long Shaft 4500-5500 RPM 4545 HP (33,6 kw) 5555 HP (39,5 kw) 5000 RPM 725 25 RPM OMC PIN 382861 5200 RPM 184 Ibs(83,4 kg) 191 Ibs(86,6 kg) 202 Ibs(91,6 kg)
Powerhead _
Displacement Bore Stroke Standard BoreCrankshaft Dimensions: Top Journal Center Journal Bottom Journal Rod Crankpin Piston Diameter, Standard Piston Ring End Gap, Both