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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
Arctic Cat F570 Snowmobile (2008-2014)
The Arctic Cat F570, produced from 2008 to 2014, was an entry-level snowmobile known for its reliable 565cc (often rounded to 570cc) fan-cooled, two-stroke twin engine, delivering approximately 60-63 horsepower. It was built on the Twin Spar chassis, which offered a more modern rider position. Throughout its production run, the F570 primarily featured a single "Base" trim. While the Twin Spar chassis received minor refinements like a softer sway bar in 2008, the F570 itself did not undergo major mid-cycle generation or engine changes between 2008 and 2014. Its 570 Gen II engine had already been updated with cleaner-burning technology prior to 2008, ensuring consistent performance across these model years. FAQ:
Q: How do I ensure I'm selecting the correct part for my F570?
A: Always use the year and model selector on our page to confirm compatibility for your specific Arctic Cat F570 (2008-2014).
Maintenance
| Component | Interval | Details |
| 2-stroke injection oil | Before every ride | The F570 uses a two-stroke oil injection system. Check reservoir and use high-quality two-stroke injection oil (TC-W3 or manufacturer-specific). |
| Drive Belt | 2,400 to 4,800 km | Break in a new belt for approximately 40 km at 3/4 throttle or less. Check for wear and replace if damaged. Periodically clean drive clutch and driven pulley. |
| Spark Plugs | Check and replace as needed | User-serviceable item. No specific interval provided. |
| Air Filter | Clean as needed | Cleaning recommended. No specific interval provided. |
| Coolant | Every 2 years | Check level seasonally and pressure test system yearly. |
| Brake Fluid | Every 2 years | Check levels at beginning and mid-season. |
| Initial Checkup (after break-in) | 160 to 480 km | Includes jetting carburetors, checking drive belt deflection, and adjusting track tension and alignment. |