outboard motorF15L Max RPM (WOT) 4000-5000 Displacement (CID/cc)6.7/(112cc) Cooling System Water-cooled w/thermostat Compression Ratio :8.4:1 Fuel/induction system:OHV Lubrication:Splash Lgnition System:TCI Staring system:Manual Shaft length:20in Gear Ratio:13:27(2.08) N.W:531b(24KG)