2001 Edition Yamaha F225A and LF225A Outboards Service Manual, Page 340Get this manual
TRBL SHTG
Troubleshooting
NOTE: To diagnose mechanical malfunction, use the troubleshooting charts pertaining to the trouble located in this chapterAlso, when checking and maintaining the outboard motor, see Chapters for safe maintenance procedures Check that all electrical connections are tight and free from corrosion, and that the battery is fully charged to 12 To diagnose malfunctioning sensor or switch, use the diagnostic flash indicator to determine the cause
Power unit
Symptom: Engine does not crank Check the starting system Check the power unitCheck that the gearshift is in the neutral position