2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 228Get this manual
Power tilt cylinder (power tilt model) 2Turn the manual valve clockwise 90 to close it3Remove the reservoir cap 2, and then check the fluid level in the reservoir S6AG7330
14Tighten the tilt cylinder end screw to the specified torque
NOTE: If the fluid is at the correct level, small amount of fluid should overflow out of the filler hole If fluid is below the correct level, add the recommended fluidRecommended power tilt fluid: ATF Dexron II 4Install the reservoir cap 2, and then tighten it to the specified torque7