| Share | Phrase |
| 23.69% | sparkplug waveform [perform operation] |
| 22.71% | sparkplug voltage [perform operation] |
| 9.29% | element [using as instrument] sparkplug |
| 6.95% | run [temporal] sparkplug |
| 6.88% | sparkplug 60 switch |
| 6.22% | circuit [does] sparkplug |
| 5.18% | sparkplug circuit [perform operation] |
| 4.13% | level [does] sparkplug |
| 3.87% | plug [connection] sparkplug |
| 2.40% | subsequent [chronology] sparkplug |
| 2.33% | so [resume] sparkplug |
| 2.04% | voltage [does] sparkplug |
| 1.83% | purpose [purpose] sparkplug |
| 1.43% | accordance [reference] sparkplug |
| 0.98% | cylinder sparkplug |