Depending on YEAR and MODEL gap is .8-1.1 I used this guide for gap: http://www.globaldenso.com/cgi-bin/global/plug/euro/4w/4w-plug.cgi?action=search&filename=4w-25.txt or plug in your info to AutoZone spark plug guide on a plug you would like to use and it will tell you gap and other info: https://www.autozone.com/external-engine/spark-plug/daihatsu/charade
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Depending on YEAR and MODEL gap is .8-1.1
I used this guide for gap:
http://www.globaldenso.com/cgi-bin/global/plug/euro/4w/4w-plug.cgi?action=search&filename=4w-25.txt
or plug in your info to AutoZone spark plug guide on a plug you would like to use and it will tell you gap and other info:
https://www.autozone.com/external-engine/spark-plug/daihatsu/charade