2007 Yamaha Apex Factory Service Manual, Page 248Get this manual

2007 Yamaha Apex Factory Service Manual, Page 248

IGNITION SYSTEM IGNITION SPARK GAP 1Remove: Ignition coil 2Measure: Ignition spark gap Out of specificationReplace the ignition
to "ON"S Measure the ignition spark gap Spark gap: mm (0.24 in) IGNITION COIL 1Disconnect: Ignition coil lead 2Connect: Pocket