High-performance non-resistor racing spark plug engineered for extreme RPM, high-compression, and severe thermal environments in competition two-stroke engines. Features a solid 98% pure copper core for maximum heat dissipation, trivalent metal plating for anti-corrosion and anti-seizing properties, a non-projected special design electrode, and a solid terminal.
Specs & Details
- Stock Number: 4684
- Part Number: R6925-10
- Thread Size: M14 - 1.25
- Reach: 19.0 mm (0.750 in)
- Seat Style: Gasket (Flat)
- Heat Range: 10
- Resistor Type: Non-Resistor (0 Ohms)
- Terminal Type: Solid Terminal
- Electrode Material: Racing-spec nickel alloy / copper core
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Honda | CR 125R / CR 250R / CR 500R | Two-Stroke Competition Motocross | Select Race Years |
| Yamaha | YZ 125 / YZ 250 | Two-Stroke Competition Motocross | Select Race Years |
| KTM / Husqvarna | 125 / 250 / 300 SX | Two-Stroke Competition Motocross | Select Race Years |
TSO Garage Note: An extreme-duty, non-resistor (0 ohm) racing plug with a solid terminal and ultra-cold heat range (10), designed strictly for dedicated race-tuned competition two-stroke engines running uninhibited ignition systems where maximum spark energy is prioritized over electrical interference suppression.
Compatibility
Fetching compatibility details...
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