| Specification | Data |
|---|---|
| Model Code | DJ012 |
| Production Years | 2004 – 2005 |
| Engine Oil | SAE 10W-40 / 20W-40 (2.70 L) |
| Spark Plug | NGK DPR8EA-9 |
| Battery | GTZ10S |
| Tire Dimensions | F: 90/90-21 | R: 130/80-18 |
| Tire Pressure | 1.5 bar (22 psi) Front/Rear |
Engineering Highlight: The Yamaha TT 600 RE (DJ012) represents the final, most refined iteration of the air-cooled 600cc single-cylinder lineage. While its predecessor, the ‘R’ model, was a hardcore kickstart-only machine with long-travel Ohlins suspension, the 2004 ‘RE’ variant was a strategic pivot by Yamaha. It introduced the highly requested electric starter (E-Starter) and a lower seat height via revised Sachs/Paioli components, effectively bridging the gap between a pure enduro and a reliable dual-sport tourer.
Technical Review: The Last of the Air-Cooled Titans
The heart of the DJ012 is the legendary 595cc SOHC four-valve engine. By 2004, this powerplant had reached its zenith of reliability. Unlike modern high-strung liquid-cooled singles, the TT 600 RE relies on massive cooling fins and a dry-sump lubrication system, making it nearly bulletproof for long-distance adventure riding where simplicity is a virtue.
The transition to the ‘RE’ designation brought about a significant change in the chassis geometry. To accommodate the electric starter motor and battery, the frame and suspension were modified, resulting in a seat height of 890mm—down from the intimidating 945mm of the ‘R’ model. This made the DJ012 accessible to a much wider range of riders without sacrificing its off-road pedigree.
Maintenance Guide & Vital Specs
Lubrication System
The DJ012 requires a high-quality mineral or semi-synthetic oil. Given its air-cooled nature, maintaining the correct oil level is critical. The system takes 2.70 Liters of SAE 10W-40 or 20W-40. Ensure the oil meets JASO MA standards to prevent clutch slippage.
Electrical & Ignition
The introduction of the E-starter necessitated a robust electrical system. The GTZ10S battery provides the necessary cold cranking amps. For ignition, the NGK DPR8EA-9 is the specified plug, gapped at 0.8–0.9mm to ensure consistent combustion in the large single cylinder.
Wheels and Handling
Equipped with a 21-inch front and 18-inch rear wheel setup, the TT 600 RE remains a capable dirt machine. For mixed-use riding, Yamaha specifies a uniform 1.5 bar (22 psi) for both the 90/90-21 front and 130/80-18 rear tires. This pressure provides an optimal balance between tarmac stability and off-road footprint.
Editorial Verdict
At MotoSpecsLab, we categorize the Yamaha TT 600 RE as a ‘Modern Classic.’ It lacks the sophisticated electronics of contemporary ADV bikes, but it offers a mechanical purity that is increasingly rare. For the enthusiast who values ease of maintenance and a lineage proven in the Dakar rallies of the 80s and 90s, the DJ012 is the ultimate evolution of the breed.
Frequently Asked Questions (FAQ)
Q: Can I use synthetic oil in the TT 600 RE?
A: Yes, provided it meets the JASO MA specification. However, many owners find that semi-synthetic 10W-40 offers the best balance for this older engine design.
Q: Why is the RE model heavier than the R model?
A: The weight increase (approx. 15kg) is primarily due to the addition of the electric starter motor, a larger battery, and the associated charging system components.