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Description
Comet's 8-inch 108 EXP is designed for high horsepower applications up to 150 HP which exceeds the limits of the well-known 7.5 inch Comet 102C. Specifications on the EXP are the same as the familiar 108C. Comet's open faced design has delivered unsurpassed reliability, easy servicing and unlimited tuning capabilities for decades on both stock sleds and on mods. The EXP will handle engagement speeds up to 5000 RPM.
FEATURES
- Wider roller for increased bearing area. Increases durability
- Larger diameter floating cam arm bolt for increased wear resistance
- Uses same tuning parts as 108C
- Built to handle high horsepower engines
- Continual/consistent smooth shifting, after hours of use
- Tried and tested in high horsepower machines
- Weights and springs are not included
Technical Specifications
- MFG. Part Number 217504A
Vehicle Information
Polaris Indy XC 600 Snowmobile (1997-2003)
The Polaris Indy XC 600 is a high-performance snowmobile that defined the period from 1997 to 2003. Known for its liquid-cooled 600cc engine, this model offered a dynamic riding experience. Initially equipped with a 597cc triple-cylinder engine in 1997, it evolved to a 593cc or 600cc twin-cylinder engine from 1998 onwards, providing consistent power. Notable changes marked this series. After utilizing the durable Gen II chassis from 1998 to 2000, Polaris introduced the innovative EDGE chassis in 2001, enhancing handling and rider comfort. Various trims, such as the XC SP, were offered, incorporating sport-tuned suspensions and advanced technologies like the Variable Exhaust System (VES) from 2001. Special editions, such as the 45th Anniversary Edition in 2000, also enriched the lineup. Frequently Asked Questions (FAQ):
Q: Is this product compatible with my Polaris Indy XC 600?
R: To ensure perfect compatibility, please use our year and model selector located at the top of the page.
Maintenance
| Component | Interval | Details |
| Oil Filter | Every 800 km or 6 months | Change with engine oil. |
| Drive Belt | Inspect and Adjust: Every 800 km or 6 months. Thorough Inspection: Every 600 hours or 9,700 km. | Replace as needed. Check condition before every ride. |
| Water Pump Belt | Inspection: Every 2,400 km | Measure belt width. Replace if width is less than 6.35 mm or if damaged (loose cords, cracks, etc.). |
| Spark Plug | Inspect and Replace: Every 3,200 km or 2 years | Recommended gap is 0.70 mm for some models. |
| Air Filter | Before every ride or as needed | Inspect, clean, or replace. Include during storage preparation. |
| Coolant | Check level and strength: Before every ride and every 800 km or 6 months. Flush system: Every 8,000 km or 5 years. | Replace 50/50 Extended Life Coolant every 5 years. Replace 60/40 Coolant (if applicable) every 2 years. |