Two
there are four spark plugs.
there is a spark plug for every cylinder so there are four spark plugs 14 or 16 gauges
There are four spark plugs in this bike's engine as it has a four cylinder V.
Four.
Four
4-cylinders have four spark plugs, 6-cylinders have six spark plugs, 8-cylinders have eight spark plugs, etc, etc, etc
Corollas has a four cylinder engine, it means it has 4 spark plugs.
The 98 Tracer has four plugs
Four plugs, one per cylinder.
Four
Four
Four