Gap
| Spark Plug Type | Spark plug gap |
| NGK BP6ES-11, BPR6ES-11 | .039 - .043 Inch (in) |
| NIPPON DENSO W20EPR-U10 | .035 - .039 Inch (in) |
| CHAMPION RN-9Y | .039 - .043 Inch (in) |
| Spark Plug Type | Spark plug gap |
| NGK BP6ES-11, BPR6ES-11 | .039 - .043 Inch (in) |
| NIPPON DENSO W20EPR-U10 | .035 - .039 Inch (in) |
| CHAMPION RN-9Y | .039 - .043 Inch (in) |