Suzuki outboard motors 1988 2003 repair manual., Page 145Get this manual
IGNITION AND ELECTRICAL SYSTEMS 5-33 3Crank the engine using the electric starter for no more than 20 seconds at time4CDI peak voltage should measure 102 volts or over at 300 rpm, and 121 volts at 500 rpm DT115 and DT140
CHECK BY SPARK
See Figure 33
Connect the CDI unit lead, CDI test cord and ignition coil lead as illustrated2Connect the ground lead wire "2" of the tester to the black lead wireof the CDI unitThe CDI unit can be checked using either Stevens CD-77 peak voltage tester or Suzuki CDI tester (09930-99830) and CDI test cord (09930-99410)CHECK BY INDICATOR LAMP