Gap
| Model No. | Spark Plug Air Gap |
| NGK BRP6ES-11 | .039 - .043 Inch (in) |
| NIPPON DENSO W20EPR-11 | .039 - .043 Inch (in) |
| CHAMPION RN9YC4 | .039 - .043 Inch (in) |
| Model No. | Spark Plug Air Gap |
| NGK BRP6ES-11 | .039 - .043 Inch (in) |
| NIPPON DENSO W20EPR-11 | .039 - .043 Inch (in) |
| CHAMPION RN9YC4 | .039 - .043 Inch (in) |