1996-2005 Suzuki DF40, DF50 Four Stroke Outboard Service Manual, Page 108Get this manual
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ELECTRICAL 4-2
FUSE CASEFUSE
09930-99320 Digital tester Tester range(Continuity)
Fuse 1 Remove the fuse from fuse case2 Inspect fuse and replace with new 30-amp fuse if needed