car is city idsi,

2nd hand car.
was going to do the my first tune up, no manual,

under the engine cover,
i saw only four sparkplugs...i've read here na it has 8 sparkplugs?
does it literally have 8 sparkplugs? or 4 lang talaga?

also, the mechanic said, this does not need the timing check like the old cars?

if it does not need the timing, what does it need?

thanks.