2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 292Get this manual
Electrical systems
Digital multimeter: YU-34899-A Peak voltage adaptor: YU-39991 Test harness (2 pins): YB-06787 Rectifier Regulator output peak voltage: Red (R) Black (B) Redyellow (RY) Black (B) rmin DC Unloaded 1,500 13 3,500 13