2004-2006 Honda FourTrax Rancher TRX350TE/TM/FE/FM Service Manual, Page 361Get this manual
IGNITION SYSTEM IGNITION PULSE GENERATOR PEAK VOLTAGE NOTE:
Check that the cy linder compression is norma and th spark lu is install ed correctl in the cy linder head Di sconnect the ignition contr ol mo dul oeM) 8P (gray) connector
Connect the peak voltage tester or adapter probes to the connector terminals of the wire harness sideCONNECTION: Blue yellow (+)Greenwhite (-)
Turn the ign iti on switch ONCra nk the engine with the starter motor and read the peak voltage