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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 Cheetah 440 Snowmobile (1972-1994)
The Arctic Cat Cheetah 440 is an iconic snowmobile produced from 1972 to 1994. Known for its robustness and versatility, this model underwent several evolutions, offering a reliable riding experience for trail enthusiasts. It was primarily powered by twin-cylinder engines ranging from 431cc to 436cc, either fan-cooled or liquid-cooled depending on the year. The Cheetah 440 lineup saw significant changes over the years. Early models (1972-1975) featured 436cc Kawasaki engines. From 1976 to 1978, there was a transition to 431cc Suzuki engines, introducing "Cheetah 4000" and "Cheetah 5000" trims. After a period with less specific 440cc information, 1990-1994 models returned with Suzuki engines (431cc to 436cc), including liquid-cooled versions and trims like "Cheetah Touring" and "1-Spd" or "2-Spd" variants in 1994, featuring chassis improvements such as AFS suspension. Q: Are parts for my 1972 Cheetah 440 compatible with a 1994 model?
R: Part compatibility can vary significantly between years and engine generations. Please use our year and edition selector to find the exact parts for your specific model.
Maintenance
| Component | Interval | Details |
| Oil Filter (oil injection system) | As needed | For two-stroke engines, maintenance focuses on the oil injection system (if present) or fuel-to-oil mixture. No traditional oil filter. |
| Drive Belt | Regular inspection | Inspect regularly for wear, fraying, or damage. Replace immediately if issues are found. Check tension. |
| Spark Plug | As needed | Inspect, clean, and replace as needed, especially during tune-ups. Use the correct type and gap. |
| Air Filter | Periodically | Clean or replace periodically to ensure proper engine function. |
| Coolant | Beginning and mid-season | For liquid-cooled models, check and replenish levels at the beginning and mid-season. |