2007-2009 Suzuki LTZ90 factory service manual, Page 210Get this manual
ELECTRICAL SYSTEM
INSPECTION
IGNITION COIL PRIMARY PEAK VOLTAGE Disconnect the spark plug cap Connect new spark plug to spark plug cap and ground it to the cylinder headNOTE: Make sure that the spark plug cap and spark plug are connected properly and the battery is fully-charged
Measure ignition coil primary peak voltage using the multi-circuit tester in the following procedure Connect the multi-circuit tester with the peak voltage adaptor as follows+ Probe: BlackWhite lead wire or groundProbe: Black lead wire NOTE: Do not disconnect the ignition coil primary wires09900-25008: Multi-circuit tester set
Peak volt adaptor
When using the multi-circuit tester and peak volt adaptor, refer to the appropriate instruction manual