This listing is for a 1999 Yamaha 25HP Carbureted 4 Stroke Outboard engine with a 20" Shaft. Model: F25ELRX Weight: 148LBS. Compression is even across all cylinders @ 205PSI. Lower unit goes into gear as it should and has no issues. Engine runs great. New Gear Oil, New Engine Oil/Filter & New Water pump. Electric Start, Manual Trim/Tilt & Remote Steer.