Hi all. Sorry kung na-discuss na ito in another thread, pero I can't find anything about the topic using the search function.

Anyway, paano po ba nililinisan ang sparkplugs? dry brush lang ba (e.g. toothbrush)? or ibabad sa kerosine? gas? alcohol? or meron ba cleaning chemical for sparkplugs talaga?

How often do you do it? every 5000kms, sabay lang sa change oil?