1998-2004 Honda Foreman 450 factory service manual, Page 69Get this manual
MAINTENANCE
AIR CLEANER HOUSING DRAIN TUBE
Remove the drain plug from the air cleaner housing to empty any depositsInstall the drain plug and clipNOTE:
Service more frequently when riding in wet or muddyareas
SPARK PLUG
Disconnect the spark plug cap and remove the spark plugNOTE:
SPARK PLUG CAP
Clean around the spark plug base with compressed air before removing, and be sure that no debris is allowed to enter the combustion chamberRemove the spark plug and inspect or replace as described in the maintenance schedule