NGK Standard Spark Plug
AB-6
$8.99
Sale price
$8.99
Regular price
$8.99
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NGK Standard Spark Plug for Yamaha SC500 Dirt Bike
NGK Standard Spark Plug for Yamaha SC500 Dirt Bike
$8.99
Sale price
$8.99
Regular price
$8.99
SKU:38-2245
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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
Yamaha SC500 Dirt Bike (1973-1974)
The Yamaha SC500, produced for the 1973 and 1974 model years, marked Yamaha's entry into the "Open Class" motocross racing segment. This motorcycle was renowned for its powerful, albeit challenging, single-cylinder, two-stroke engine. With a displacement of 496cc (sometimes cited as 498cc), the engine was capable of producing 44 horsepower at 6500 rpm, characterized by an explosive and narrow power band. Throughout its two-year production run, the SC500 was primarily offered as a single model, with no significant mid-cycle generation changes between 1973 and 1974, although the 1974 model was occasionally referred to as the SC500A. Yamaha did issue "Technical Bulletin No. 348," recommending the installation of an ignition condenser. This modification aimed to smooth out the bike's notoriously peaky and aggressive power delivery, addressing its challenging characteristics post-production. FAQ:
Q: How can I confirm parts compatibility for my Yamaha SC500 (1973-1974)?
A: To ensure you select the correct parts for your specific model year and edition, please use the vehicle selector tool available on this page.
Maintenance
| Component | Interval | Details |
| Air Filter | As often as possible | Clean element with an oil mixture and squeeze dry. Essential for motocross use. |
| Gear Oil | For each race | Check level and replace due to severe operating conditions. |
| Initial Inspection (after break-in) | After 16 km | Check cylinder, piston, and rings for scratches. Smooth any high spots. |
Official service intervals for the 1973-1974 Yamaha SC500 are not comprehensively available from a single source. The following recommendations are compiled from various mentions and general two-stroke motocross practices of the era. Always consult an original owner's manual for definitive information.