NGK
Description
This NGK BPR7HS spark plug keeps your compatible two-stroke scooter or ATV firing consistently, whether you are easing through town or heading out for a weekend ride. Its 98% pure copper core transfers heat efficiently, while the projected insulator tip resists carbon fouling during low-speed riding. An integrated 5kO resistor helps suppress electromagnetic interference with digital displays and onboard electronics.
Key Features
- Consistent ignition: A 98% pure copper core supports reliable firing and efficient heat dissipation.
- Anti-fouling tip: Projected insulator design helps resist carbon buildup during low-speed riding.
- Electrical noise suppression: Integrated 5kO resistor reduces electromagnetic interference.
- Corrosion protection: Trivalent metal plating provides corrosion and anti-seize protection without added anti-seize compound.
- Flashover resistance: Corrugated alumina silicate ceramic insulator ribs help prevent flashover and electrical leakage.
Technical Specifications
- Brand: NGK
- Part number: SP17
- Plug designation: BPR7HS
- NGK stock number: 6422
- Thread diameter: 14mm
- Thread reach: 12.7mm (1/2 inch)
- Hex size: 20.6mm (13/16 inch)
- Heat range: 7
- Resistor: 5kO
- Core: 98% pure copper
- Insulator: Alumina silicate ceramic with corrugated ribs
- Plating: Trivalent metal
Compatibility
| Make | Model / application | Years |
|---|---|---|
| Genuine | Buddy 50, RoughHouse 50, Rattler 50/110, Black Cat | — |
| Yamaha | Jog 50, Zuma 50, Vino 50 two-stroke | — |
| Yamaha | BW80 Big Wheel | 1989–2011 |
| Aprilia | Mojito 50 | — |
| Aprilia | 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 |
| Other applications | Compatible two-stroke 50cc–110cc scooters, ATVs, go-karts and pocket bikes | — |
Match the BPR7HS designation and plug specifications to your engine requirements. Set the spark-plug gap and installation torque according to your vehicle’s service manual.
Product Diagrams
Features
Specifications
Brand: NGK; Part number: SP17; Plug designation: BPR7HS; NGK stock number: 6422; Thread diameter: 14mm; Reach: 12.7mm (1/2 inch); Hex: 20.6mm (13/16 inch); Heat range: 7; Resistor: 5kΩ; Core: 98% pure copper; Insulator: corrugated alumina silicate ceramic; Plating: trivalent metal
Manuals / Install Instructions
Model Fitments
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; compatible two-stroke 50cc–110cc scooters, ATVs, go-karts and pocket bikes. Match BPR7HS plug specifications.
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
