Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 346Get this manual
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POWER TRIM AND TILT MOTOR (200H, 225GV200, V225)
2 Measure: Commutator undercut Out of specification Replace the armatureCommutator undercut limit 0.85 mm (0.03 in)
3 Inspect