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 GTMX Dirt Bike
NGK Standard Spark Plug for Yamaha GTMX 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 GTMX Dirt Bike (1973-1979)
The Yamaha GTMX, an off-road motorcycle, was produced from 1973 to 1979. Sharing design elements with its sibling, the GT80, it was primarily equipped with a single-cylinder, two-stroke, air-cooled engine. Engine displacement generally ranged from 72cc to 79cc, with most models featuring a 72cc unit and a 4-speed transmission, delivering around 5 horsepower. The GTMX was explicitly designed for off-road use, characterized by features like a high front fender. Throughout its production, the GTMX was offered as a "Base" model. The yearly alphanumeric designations (e.g., GTMXA, GTMXB) indicated annual model updates rather than distinct trim levels. While the GTMX's core engine remained consistent, the closely related GT80 saw a significant update in 1979, adopting a mono-suspension system and a more powerful engine. It is plausible that some of these advancements influenced or were shared with the GTMX, given their close platform relationship. FAQ:
Q: How do I know which GTMX model I have?
A: Please use our year and edition selector on this page to find parts specific to your Yamaha GTMX. Q: Are parts for the GTMX compatible with the GT80?
A: While the GTMX and GT80 share many similarities, always use our year and edition selector to ensure compatibility for your specific model.
Maintenance
| Component | Interval | Details |
| Transmission/Gearbox Oil | Every 1,500 to 2,000 km after initial service | GTMX models are two-stroke and do not have a traditional engine oil filter. Transmission oil requires changing. More frequent changes may be necessary depending on riding conditions. |
| Drive Chain | Every 1,000 km or after washing, rain, or riding in wet areas | Check for slack, alignment, and condition, then lubricate thoroughly. GTMX models use a chain drive system, not a belt. |
| Spark Plug | Every 1,000 km or monthly (inspection and cleaning) | Inspect and clean. Replace if porcelain is burned or electrodes are worn. General replacement is suggested every 10,000 km. |
| Air Filter | Every 10,000 km (service or replacement) | The filter element must be serviced (cleaned and re-oiled for reusable foam filters) or replaced. Older models often used reusable foam filters. |
| Coolant | Not applicable | Yamaha GTMX models from this period are air-cooled and do not use liquid coolant. Maintenance involves ensuring adequate airflow to the engine fins. |
Maintenance intervals may vary by year and usage conditions. It is highly recommended to consult the official owner's manual for your specific model for accurate information.