2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 182Get this manual
Power tilt gear pump (power tilt model).7-35 Disassembling the gear pump .7-38 Checking the gear pump .7-38 Checking the valve seal.7-38 Checking the filter7-39 Assembling the gear pump 7-39 Power tilt cylinder (power tilt model) 7-41 Disassembling the tilt cylinder .7-43 Checking the tilt cylinder and piston 7-43 Assembling the tilt cylinder 7-44 Bleeding the power tilt unit 7-46 Power tilt electrical system (power tilt model) 7-47 Checking the fuse7-47 Checking the power tilt relay 7-48 Checking the power tilt switch .7-49