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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
Ski-Doo Formula Z 583 Snowmobile (1994-1999)
The Ski-Doo Formula Z 583 was an iconic snowmobile produced from 1994 to 1999. Known for its robust Rotax 583 engine, this model was powered by a liquid-cooled 581cc twin-cylinder engine, producing approximately 102 to 105 horsepower. It offered a balance of power, agility, and ride comfort. During its production, the Formula Z 583 underwent significant evolutions. Launched in 1994 on the F chassis with a mechanical disc brake, it was upgraded in 1995 with a hydraulic brake and rebuildable shocks. In 1996, the C-7 rear suspension was replaced by the SC-10, offering significantly improved comfort. From 1997, the model adopted the S-2000 chassis, an advanced platform for its time. The 1998 and 1999 models, sometimes referred to as the 'Formula 583 Z', maintained the proven Rotax 583 engine. Q: Is this product compatible with my snowmobile?
R: To ensure compatibility, please use our year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| 2-stroke injection oil | Before every ride | Check reservoir level. Low level can severely damage the engine. |
| Drive belt | Regular inspection | Check for wear, damage, or glazing. Replace if damaged or worn. General lifespan: 2 400 to 4 800 km. |
| Spark plug | Annually or as per manual | Inspect and replace as part of routine maintenance. |
| Air filter | Annually or more often | Clean or replace depending on riding conditions. |
| Coolant | Check before every ride; Replace every 2 years | Check level when cold. Use manufacturer-specified fluid. |