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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 Mountain Cat 600 Snowmobile (2001-2004)
The Arctic Cat Mountain Cat 600, produced from 2001 to 2004, was a prominent mountain snowmobile powered by a 599cc, 2-stroke, liquid-cooled engine with Electronic Fuel Injection (EFI). This robust horizontal in-line twin engine, often identified as a Suzuki unit, provided reliable performance for its class. While specific horsepower figures for these exact years are not consistently available, later 600cc engines were noted to be in the 125 hp range, suggesting comparable output. Throughout its production, the Mountain Cat 600 saw several key enhancements. The 2001 model introduced Arctic Power Valve (APV) technology, wider footholds, and improved ergonomics with a riser block handlebar. Significant chassis updates arrived in 2003, including a 35-pound weight reduction and a dropped and rolled chaincase, alongside the introduction of the "1M" mountain-specific chassis with longer track options. Further weight savings of 8.5 pounds were achieved in 2004, featuring a plastic dropcase, an 8-inch rear wheel for efficiency, and an adjustable ski stance, enhancing its mountain capabilities. Trims like the Limited Edition (LE) and various track lengths (136-inch, 144-inch) were offered across the years. FAQ:
Q: How do I ensure I select the correct part for my Arctic Cat Mountain Cat 600 (2001-2004)?
A: Please use the year and trim selector on this page to filter for parts specifically designed for your snowmobile's exact configuration.
Maintenance
| Component | Interval | Details |
| Engine oil and filter (2-stroke) | 1,000 km or 1 month (after break-in) | This service is at the owner's discretion and expense. |
| Drive belt | Regular inspection | Inspect for wear, tears, or fraying; replace if damaged or worn. Keep a worn but reasonable belt as a spare. |
| Spark plugs | Storage preparation | Remove spark plugs and add storage oil. |
| Air filter | Storage preparation | Check for obstructions and clean. |
| Coolant | Early winter and mid-season (levels); Annually (strength and pressure) | Check and replenish levels. Inspect coolant strength and pressure test the system. |