1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 179Get this manual
POWER TRIM AND TILT (PTT) CONTROL SYSTEM
TRIM SENSOR
1M asure: Tri se nsor resista nce ut of sp ecificatio Re placeTrim sensor resistance: Pink (P) Black (B) 582873 at 20C (68F)