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Description
Standard Spark Plug
The workhorse, at the heart of smooth-running engines around the world.
FEATURES
- OEM Quality
- Triple-Gasket Sealing Process
- Consistent Performance
- Plug of Choice in Millions of Vehicles
- Sold each
Technical Specifications
- MFG. Part Number AB-6
Vehicle Information
Honda QA50 Dirt Bike (1970-1975)
The Honda QA50, produced from 1970 to 1975, was a compact off-road minibike designed for youth riders. It was powered by a consistent 49cc (50cc) air-cooled, OHV single-cylinder four-stroke engine, delivering 1.8 horsepower at 5,000 rpm, paired with a 2-speed semi-automatic transmission. This robust and simple platform remained largely unchanged throughout its production run. There were no significant mid-cycle generation or engine changes for the Honda QA50 between 1970 and 1975. The core engine and transmission specifications remained consistent across all model years. Variations were primarily cosmetic, indicated by "K" designations (K0, K1, K2, K3), which denoted annual updates such as changes in paint colors, fender designs, tank accents, and handlebar types. For instance, the K0 (1970-1972) featured patented Swivel-Lok handlebars and black rubber tank molding, while the K1 (1973) introduced stationary bars and chromed tank accents. These were aesthetic revisions rather than fundamental mechanical overhauls. FAQ:
Q: How do I ensure I select the correct parts for my Honda QA50?
A: To guarantee fitment, please use the year and edition selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil | Initially, then every 30 operating days | Capacity: 1.0 L. Use high detergent, premium quality motor oil (SAE 10W-40 for all temperatures, specific viscosities for others). Check level between marks. |
| Oil Screen and Spinner | Clean initially between 480-960 km, then every 4800 km or yearly | Internal components, not a traditional replaceable filter. |
| Drive Chain | Lubricate and adjust initially, then every 30 operating days. Check slack daily. | Slack should be 10-20 mm at midpoint. |
| Spark Plug | Service initially, then every 60 operating days | Type: NGK C-7 HS or ND U 22 FS. Gap: 0.6-0.7 mm. Clean or replace as needed. |
| Air Filter | Service initially, then every 30 operating days or 3 months | Clean polyurethane foam element with Stoddard solvent, soak in gear oil. More frequent service in dusty conditions. |
| Coolant | N/A | Engine is air-cooled, no liquid coolant used. |