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Description
Bred from a rich history of experienced belt builders, the Dayco XTX belt is specifically engineered to maximize the performance of the most extreme, high horsepower snowmobiles. Beating the competition on the race course is just one of many aspects that sets the XTX belt apart from its competition. Specially formulated high temperature Polymer along with the highest level of engineered reinforcement proves to perform better in belt operating temperature and efficiency than leading competitors. Its innovative break-through design of deeper cogs on top and rounded cogs on the bottom yield the advantages of ultimate flexibility and longer belt life while being a better alternative to the original equipment belt.
Key Features
- Faster and more consistent throttle response at high speeds
- Quicker throttle response at mid-speed acceleration
- Greater secondary acceleration at high RPMs
- Greater secondary acceleration as primary acceleration increases
- Reduction in slippage during the highest levels of torque
- Providing more power to track
- Better performance during deceleration (more responsive engine braking)
- Tested and proven reliability at well over 12,000 RPMs
- Cooler-running temperature than the leading competitors
Technical Specifications
- MFG. Part Number XTX5057
Vehicle Information
Ski-Doo MXZ 670 Snowmobile (1996-1999)
The Ski-Doo MXZ 670, produced from 1996 to 1999, was a high-performance snowmobile known for its powerful 669cc liquid-cooled Rotax twin engine. This model consistently featured the same engine displacement throughout its production run. The MXZ 670 saw significant evolution during these years. In 1996, the model was introduced with the lighter S chassis, offering improved suspension travel. For the 1999 model year, a major upgrade occurred with the introduction of the all-new ZX chassis, which enhanced handling. Concurrently, the engine was upgraded to the 670 HO (High Output) version, delivering a notable increase in power compared to previous years. The 1999 HO model also incorporated advanced features like the Digital Performance Management (DPM) system for optimized jetting and the Digital Encoded Security System (DESS). The 1999 MXZ 670 HO was a standout model before the 670cc engine was replaced in subsequent years. FAQ:
Q: Will this product fit my Ski-Doo MXZ 670?
A: To ensure perfect compatibility, please use the year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Oil Filter | Not applicable (2-stroke engine) | This 2-stroke engine does not use a traditional oil filter. Regularly check the 2-stroke injection oil reservoir level before each ride and refill as needed to prevent engine damage. |
| Drive Belt | Every 50 hours | Inspect for wear, cracks, and proper tension. Typical lifespan is 2 400 to 4 800 km, but varies with riding conditions. |
| Spark Plug | Annually | Replace once per season for moderate use. More frequent replacement may be needed for hard riding or racing. |
| Air Filter | Every 11 000 km or as needed | Clean with compressed air or replace. Inspect more frequently in dusty conditions, potentially after every ride. |
| Coolant | Every 2 years | Change with a 50% distilled water and 50% antifreeze solution. Some sources suggest every 5 years for similar models, but 2 years is a common recommendation. |