Charts
Spark plug chart
99 gas bikes, by make; 98 of the values are read off an owner’s manual page. Stock figures as the bikes left the factory; check your own bike’s manual before you work on it.
By bike
| Bike | As printed, with its source |
|---|---|
| GasGas EX 300 2027 | NGK BR 8 ES Owner's manual p. 130 |
| GasGas MC 250F 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 135 |
| GasGas MC 450F 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 134 |
| GasGas MC 50 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 120 |
| GasGas MC 65 2027 | BRISK AR12C, gap 0.70 mm Owner's manual p. 114 |
| GasGas MC 85 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 119 |
| Honda CRF110F 2024 | NGK CPR6EA-9S, gap 0.8-0.9 mm Owner's manual p. 145 |
| Honda CRF125F 2025 | NGK CPR6EA-9, gap 0.80-0.90 mm Owner's manual p. 150 |
| Honda CRF250R 2027 | NGK SILMAR9A9S, gap 0.8-0.9 mm Owner's manual p. 74 |
| Honda CRF250RX 2026 | NGK SILMAR9A9S, gap 0.8-0.9 mm Owner's manual p. 74 |
| Honda CRF250RX 2027 | NGK SILMAR9A9S, gap 0.8-0.9 mm Owner's manual p. 74 |
| Honda CRF450R 2026 | NGK SILMAR9A-9S, gap 0.80-0.90 mm Owner's manual p. 74 |
| Honda CRF450R 2027 | NGK SILMAR9A-9S, gap 0.80-0.90 mm Owner's manual p. 75 |
| Honda CRF450RX 2026 | NGK SILMAR9A-9S, gap 0.80-0.90 mm Owner's manual p. 74 |
| Honda CRF450RX 2027 | NGK SILMAR9A-9S, gap 0.80-0.90 mm Owner's manual p. 75 |
| Honda CRF50F 2025 | NGK CR6HSA or DENSO U20FSR-U, gap 0.6-0.7 mm Owner's manual p. 133 |
| Husqvarna FC 250 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 145 |
| Husqvarna FC 350 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 152 |
| Husqvarna FC 450 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 152 |
| Husqvarna FX 350 2027 | NGK LMAR9AI-10 Owner's manual p. 152 |
| Husqvarna TC 125 2026 | NGK BR10 ECMVX, gap 0.80 mm Owner's manual p. 139 |
| Husqvarna TC 125 2027 | NGK BR10 ECMVX, gap 0.80 mm Owner's manual p. 141 |
| Husqvarna TC 250 2026 | NGK BR 8 ES, gap 0.60 mm Owner's manual p. 141 |
| Husqvarna TC 250 2027 | NGK BR 8 ES, gap 0.60 mm Owner's manual p. 150 |
| Husqvarna TC 50 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 124 |
| Husqvarna TC 65 2027 | BRISK AR12C, gap 0.70 mm Owner's manual p. 119 |
| Husqvarna TC 85 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 123 |
| Husqvarna TE 300 2027 | NGK BR 7 ES Owner's manual p. 168 |
| Husqvarna TX 300 2027 | NGK BR 8 ES Owner's manual p. 150 |
| Kawasaki KLX230R 2027 | SILMAR9B9 Owner's manual p. 10 |
| Kawasaki KLX300R 2027 | NGK CR8E Owner's manual p. 10 |
| Kawasaki KX250 2003–2004 | NGK BR8EIX Owner's manual p. 1-10 |
| Kawasaki KX250 2024 | NGK CR9EIB-9 Owner's manual p. 11 |
| Kawasaki KX250 2025 | NGK SILMAR9F9 Owner's manual p. 11 |
| Kawasaki KX250F 2007–2008 | NGK CR8E Owner's manual p. 1-8 |
| Kawasaki KX250FX 2027 | NGK SILMAR9F9 Owner's manual p. 12 |
| Kawasaki KX450 2024 | NGK CPR8EB-9 Owner's manual p. 10 |
| Kawasaki KX450 2025 | NGK CPR8EB-9 Owner's manual p. 12 |
| Kawasaki KX450F 2006–2008 | NGK CPR8EB-9 Owner's manual p. 1-8 |
| Kawasaki KX450X 2026 | NGK CPR8EB-9 Owner's manual p. 12 |
| Kawasaki KX65 2024 | NGK BR10EG Owner's manual p. 12 |
| Kawasaki KX65 2025 | NGK BR10EG Owner's manual p. 13 |
| Kawasaki KX85 2025 | NGK R6252K-105 Owner's manual p. 15 |
| Kawasaki KX85 2026 | NGK R6252K-105 Owner's manual p. 14 |
| Kawasaki KX85 2027 | NGK R6252K-105 Owner's manual p. 14 |
| KTM 125 SX 2027 | NGK BR10 ECMVX, gap 0.80 mm Owner's manual p. 144 |
| KTM 150 SX 2025 | NGK BR10 ECMVX, gap 0.80 mm Owner's manual p. 133 |
| KTM 250 SX 2027 | NGK BR 8 ES, gap 0.60 mm Owner's manual p. 145 |
| KTM 250 SX-F 2025 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 144 |
| KTM 250 SX-F 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 152 |
| KTM 250 XC-W 2027 | NGK BR 7 ES Owner's manual p. 170 |
| KTM 300 XC 2024 | NGK BR 8 ES, gap 0.60 mm (0.0236 in) Owner's manual p. 130 |
| KTM 300 XC 2025 | NGK BR 8 ES, gap 0.60 mm (0.0236 in) Owner's manual p. 130-131 |
| KTM 300 XC 2026 | NGK BR 8 ES, gap 0.60 mm (0.0236 in) Owner's manual p. 145 |
| KTM 300 XC-W 2027 | NGK BR 7 ES Owner's manual p. 170 |
| KTM 350 SX-F 2025 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 134 |
| KTM 350 SX-F 2026 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 157 |
| KTM 350 SX-F 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 150 |
| KTM 350 XC-F 2027 | NGK LMAR9AI-10 Owner's manual p. 150 |
| KTM 450 SX-F 2024 | NGK LMAR9AI-10, gap 1.0 mm (0.039 in) Owner's manual p. 151 |
| KTM 450 SX-F 2025 | NGK LMAR9AI-10, gap 1.0 mm (0.039 in) Owner's manual p. 137 |
| KTM 450 SX-F 2026 | NGK LMAR9AI-10, gap 1.0 mm (0.039 in) Owner's manual p. 150 |
| KTM 450 SX-F 2027 | NGK LMAR9AI-10, gap 1.0 mm Owner's manual p. 152 |
| KTM 50 SX 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 123 |
| KTM 65 SX 2027 | BRISK AR12C, gap 0.70 mm Owner's manual p. 118 |
| KTM 85 SX 2027 | BRISK AR10C, gap 0.70 mm Owner's manual p. 121 |
| Suzuki DR-Z50 2026 | NGK CR7HSA or DENSO U22FSR-U Manufacturer spec sheet (research) |
| Suzuki RM-Z250 2027 | NGK CR8EIB-10, gap 0.9-1.0 mm Owner's manual p. 6-18 |
| Suzuki RM-Z450 2027 | NGK DIMR8C10, gap 0.9-1.0 mm Owner's manual p. 6-18 |
| Yamaha TT-R125LE 2027 | Niterra do Brasil Ltda./CR7HSA Owner's manual p. 7-8 |
| Yamaha TT-R230 2027 | Niterra do Brasil Ltda./DR8EA Owner's manual p. 7-6 |
| Yamaha WR250F 2027 | NGK/LMAR8E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha WR450F 2027 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
| Yamaha YZ125 2016 | NGK BR9EVX, gap 0.6-0.7 mm Owner's manual p. 2-1 |
| Yamaha YZ125 2025 | NGK/BR9EVX, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ125 2026 | NGK/BR9EVX, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ125 2027 | NGK BR9EVX, gap 0.6-0.7 mm Owner's manual p. 2-2 |
| Yamaha YZ250 2015 | NGK BR8EG, gap 0.5-0.6 mm Owner's manual p. 2-1 |
| Yamaha YZ250 2025 | NGK/BR8EG, gap 0.5–0.6 mm (0.020–0.024 in) Owner's manual p. 2-2 |
| Yamaha YZ250 2026 | NGK/BR8EG, gap 0.5–0.6 mm (0.020–0.024 in) Owner's manual p. 2-2 |
| Yamaha YZ250 2027 | NGK BR8EG, gap 0.5-0.6 mm Owner's manual p. 2-2 |
| Yamaha YZ250F 2019 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2020 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2021 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2022 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2023 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2024 | NGK LMAR9E-J, gap 0.6-0.7 mm Owner's manual p. 2-2 |
| Yamaha YZ250F 2025 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2026 | NGK/LMAR9E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250F 2027 | NGK LMAR9E-J, gap 0.6-0.7 mm Owner's manual p. 2-2 |
| Yamaha YZ250FX 2027 | NGK/LMAR8E-J, gap 0.6–0.7 mm (0.024–0.028 in) Owner's manual p. 2-2 |
| Yamaha YZ250X 2027 | NGK/BR8EG, gap 0.5–0.6 mm (0.020–0.024 in) Owner's manual p. 2-2 |
| Yamaha YZ450F 2021 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
| Yamaha YZ450F 2022 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
| Yamaha YZ450F 2023 | NGK LMAR8G, gap 0.7-0.8 mm Owner's manual p. 2-2 |
| Yamaha YZ450F 2024 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
| Yamaha YZ450F 2026 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
| Yamaha YZ450F 2027 | NGK LMAR8G, gap 0.7-0.8 mm Owner's manual p. 2-2 |
| Yamaha YZ450FX 2027 | NGK/LMAR8G, gap 0.7–0.8 mm (0.028–0.031 in) Owner's manual p. 2-2 |
Each value is copied as the source prints it. “Owner’s manual p. n” is read off that page; “research” is the maker’s spec sheet or web page. 37 other gas bikes in the Garage have no spark plugs and gap on file yet; data coverage lists every gap.