2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 44Get this manual
Maintenance specification Item Charging system Fuse Lighting coil output peak voltage (G G) at cranking (unloaded) at 1,500 rmin (unloaded) at 3,500 rmin (unloaded) Lighting coil resistance(1) (G G) at 20 (68 F) Rectifier Regulator output peak voltage (R B) at 1,500 rmin (unloaded) at 3,500 rmin (unloaded) Power tilt motor Output Brushes Standard length Wear limit Commutator Standard diameter Wear limit Standard undercut Wear limit (1)