NGK BPR7HS Spark Plug #6422 | 2-Stroke 50cc-110cc
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The NGK BPR7HS is the industry-standard spark plug for 2-stroke 50cc–110cc scooters, ATVs, and small powersports engines. A 98% pure copper core delivers consistent ignition and superior heat dissipation, while the projected insulator tip resists carbon fouling during low-speed city riding. The integrated 5k Ohm resistor suppresses electromagnetic interference with digital displays and onboard electronics. Trivalent metal plating provides corrosion and anti-seize protection — no compound needed. Thread size: 14mm Reach: 12.7mm (1/2") Hex size: 20.6mm (13/16") Heat range: 7 Resistor: 5k Ohm Core: 98% pure copper Insulator: Alumina silicate ceramic with corrugated ribs (flashover prevention) Plating: Trivalent metal (anti-seize, corrosion resistant) Compatible Models: Genuine: Buddy 50, RoughHouse 50, Rattler 50/110, Black Cat Yamaha: Jog 50, Zuma 50, Vino 50 (2T), BW80 Big Wheel (1989–2011) Aprilia: Mojito 50, SR50 Ditech (1999–2004) E-Ton: Beamer 50, Matrix 50, Viper 50/70/90 Polaris: Sportsman 90, Predator 50/90, Scrambler 50/90 (2001–2014) Suzuki: Quadsport 80 / LT80 (1987–2006) Many additional 2-stroke 50cc–110cc scooters, ATVs, go-karts, and pocket bikes California Prop 65 Warning: www.p65warnings.ca.gov
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