2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 51Get this manual
MAINTENANCE
SPARK PLUG
Disconnect the spark plug cap and clean afound the spark plug baseClean around the spark plug base with compressed air before removing the plug, and be sure that no debris is allowed 10 enter the combus ion cham -
PLUG CAP
be,Remove he spark plug
Check the insulator for crltCks or damage, lind the electrodes for weer, lou ling or discolorationReplace the plug if necessary spark plugpage 3-1),
,INSULATOR SIDE
Clean the spark plug elec trodes with wire type brush or specilll plug cleaner