1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 183Get this manual
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WIRING DIAGRAM (25JMH, 25JMHO, 30DMH, 30DMHO) WG R WB Br Br L
T er itch ark plu gs Ig nitio coils arg coil Lig htin coil Pulser coils DI nit Rectifierre ulator (for 25J H, 30D H)