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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 LT3 100 Motorcycle - Dual-Sport (1973)
The 1973 Yamaha LT3 100 was a prominent 100cc motorcycle, part of Yamaha's versatile lineup that included both Enduro and Motocross models. This model featured a robust 97cc single-cylinder, reed-valve, piston-port engine with a bore of 52mm and a stroke of 45.6mm. It incorporated Yamaha's Autolube system for efficient lubrication. The engine was enhanced with a reed valve and a 7-port cylinder, designed to deliver consistent power across various speeds. For 1973, Yamaha offered the standard LT3 Enduro and the LTMX, a motocross-specific variant described as a "stripped, kitted Enduro" for racing. The 1973 LT3 succeeded the 1972 LT2. While not a complete mechanical overhaul, it brought notable updates including improvements to the forks, overall appearance, and potential refinements to the porting and combustion chamber. The engine's reed valve and 7-port cylinder were key enhancements for power delivery. Rear shocks were adjustable, and the front fork design was strengthened for better handling. Q: How can I confirm this part fits my 1973 Yamaha LT3 100?
A: To ensure perfect compatibility, please use the year, make, and model selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Oil Filter | Not applicable | The Autolube system uses a separate oil tank for two-stroke engine lubrication, without a traditional oil filter. Ensure the tank is filled with the correct two-stroke oil. |
| Belt | Not applicable | This model uses a chain drive, not a drive belt. |
| Spark Plug | Inspect and replace if necessary, approximately every 3,200 km | More frequently in harsh conditions or for older nickel alloy plug types. |
| Air Filter | Inspect and clean/replace every 4,000 km | More frequently in dusty conditions, potentially after every ride. |
| Coolant | Not applicable | The Yamaha LT3 100 is an air-cooled model and does not use liquid coolant. |