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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 Storm 800 Snowmobile (1994-1998)
The Polaris Indy Storm 800, produced from 1994 to 1998, was a high-performance snowmobile known for its robust 794cc liquid-cooled triple-cylinder engine. This powerful engine remained consistent across all model years, establishing the Storm 800 as a formidable "muscle sled" of its era, celebrated for its significant acceleration and power. While the core engine and Wedge Indy chassis remained, Polaris introduced notable refinements. The 1995 models saw the standardization of Indy Select Shocks, offering adjustable compression. Furthermore, a transition from steel to more durable NiCaSil-lined cylinders likely occurred around 1995, enhancing engine longevity and performance. Trim levels evolved, with the introduction of SKS, RMK, and SE variants over the production run. FAQ:
Q: How do I ensure I'm selecting the correct parts for my Polaris Indy Storm 800?
A: Please use the year and edition selector at the top of the page to confirm compatibility with your specific 1994-1998 model.
Maintenance
| Component | Interval | Details |
| Initial Break-In Service | First 25 hours or 800 km or 1 month | Change engine oil and filter. Inspect and replace air filter as necessary, clean ducts. Inspect coolant level, check for leaks, add coolant if needed. Lubricate all fittings. Inspect and replace drive belt as needed. |
| Air Filter | Every 25 hours or 800 km or annually | Inspect and replace as necessary. Ensure proper installation and clean ducts and screens. |
| Coolant | Every 25 hours or 800 km or annually | Inspect fluid level, check for leaks, add coolant if needed. Inspect strength seasonally and pressure test the system yearly. |
| Drive Belt | Every 25 hours or 800 km or annually | Inspect and replace as needed. |
| Spark Plugs | Every 1600 km or annually | Inspect and replace as needed. Check the firing end condition after the engine is warmed up and driven under load. |
| General Lubrication | Every 1600 km or annually | Lubricate all fittings, pivots, and cables, including rear suspension pivot shafts. |
| Spark Plugs | Every 3200 km or 2 years | Inspect and replace as needed. |
| Coolant | Every 8000 km or 5 years | Flush the coolant system. |
| Engine Oil | Before every ride | Check oil level. |
| Air Filter | Before every ride | Inspect and clean, replace as needed. |
| Coolant | Before every ride | Check fluid level. |
| Drive Belt | Before every ride | Check for signs of wear. |
| Drive Belt | End of Season Storage | Remove the drive belt to prevent damage and reduce condensation. |
| Spark Plugs | End of Season Storage | Check condition. |