Usually the gap should be from .020"-.024"
NGK BR9EG is the correct plug for a 2001 Yamaha YZ 125
It is .060...
.044
.044
The correct spark plug for 2001 1.6 Ford Focus is NGK TR5A-10 with a gap of 1.3mm
Ngk cr9e
.044
0.054 for the 1999-2001, others not sure.
0.8 to 0.9mm
only use AC Delco plugs, there the only one with the correct heat range.
0.054 for 1999 to 2001 V6.
That's not really what's going on. The coil makes the spark, the distributor distributes the spark to the correct plug. If the distributor is not in the correct position, the spark does not go to the correct plug, or goes to the correct plug at the wrong time.