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Description
Replacement outer flange for Bombardier, Skiroule. Fits most bogie wheel assemblies.
Technical Specifications
- MFG. Part Number 04-122
Vehicle Information
Ski-Doo TNT 340 Snowmobile (1970-1978)
The Ski-Doo TNT 340 series, produced from 1970 to 1978, was a performance-oriented snowmobile known for its dynamic design. These models primarily featured Rotax 2-stroke engines, with displacements typically around 339cc or 340cc, though some later RV models used 337cc or 346cc variants. Throughout its production, the TNT 340 saw significant evolution, including variations in engine cooling (free-air or fan-cooled) and suspension systems (slide rail or bogie wheel). Key changes included the introduction of distinct chassis options in 1972, and a new aluminum frame for Free Air models in 1973. Trims like the "Silver Bullet" (1973) and the high-performance RV series (from 1976) brought further innovations, such as rotary valve induction, longer tracks, and increased fuel capacity. The RV Cross Country trim (1977-1978) was a notable high-performance variant, featuring a 75 HP engine. These developments reflect a continuous effort to enhance performance and rider experience. FAQ:
Q: How do I ensure I select the correct parts for my Ski-Doo TNT 340?
A: Please use the year and edition selector on this page to find parts specifically compatible with your snowmobile. Q: Are there significant differences between model years?
A: Yes, the TNT 340 underwent several changes in engine, chassis, and trims. Use the selector to match your specific model.
Maintenance
| Component | Interval | Details |
| Engine Oil | Not applicable (2-stroke pre-mix engine) | 2-stroke pre-mix engines, no separate engine oil filter. Oil/gas ratios: 20:1 (1970-1973), 40:1 (1974), 50:1 (later models). |
| Chaincase Oil | Check pre-season and every 50 hours. Change end of season or annually. | |
| Drive Belt | Inspect before every ride. Replace at the start of each season or every 2,400 to 4,800 km. | Inspect for cracks, uneven wear, flat spots, or fraying. Clean clutch periodically. |
| Spark Plug | Replace pre-season or if engine issues. | |
| Air Filter | Inspect periodically. | Do not operate without air intake silencer to prevent engine damage. |
| Coolant | Check level before every ride. Change every two years. | Applicable to fan-cooled models. |
| Lubrication (steering and suspension) | Monthly or every 40 hours. | More frequently in wet or severe conditions. |