How to change spark plug?

Hi. First time with my echo 2002. I would like to change the spark plugs. I found the injectors but not the plugs. Where are they located? Thank you

Paul-R.
April 2010

You need a plug spanner (motorist discount) and just unscrew them.
If it,s a deisel it wont have any, they will be glow plugs but same applies only much smaller.
Normaly dont need new spark plugs just get a wire brush and clean
& set correct gap.
If glow plugs replace with new, you can check if they work by connecting them across a battery charger and see if they glow red, the gauge will not move if dead.

King ada
January 2005