2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 61Get this manual
Power unit 5Install the oil filter, and then tighten it to the specified torque using 72.5 mm (2.9 in) oil filter wrench3Turn the crankshaft clockwise two turns to take up slack in the timing belt
Replacing the timing belt
NOTE: For replacement procedures, see Chapter 5, "Replacing the timing belt Oil filter: 18 Nm (1.8 kgfm, 13 ftlb)Checking the valve clearance
NOTE: For checking procedures, see Chapter 5, "Checking the valve clearance
6Pour the specified amount of the recommended engine oil into the oil filler holeRecommended engine oil: 4-stroke motor oil API: SE, SF, SG, or SH SAE: 10W-30 or 10W-40 Oil quantity: With oil filter replacement: 6.0 (6.3 US qt, 5.3 Imp qt) 7Install the oil filler cap and dipstick, and then start the engine and warm it up for minutes8Turn the engine off, and then check the oil level and correct it if necessary9Install the oil filter cover