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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 GSX 800 Snowmobile (2004-2015)
The Ski-Doo GSX 800, produced from 2004 to 2015, is a luxury-performance touring snowmobile known for its continuous evolution. This series was powered by Rotax 800cc two-stroke engines and benefited from significant chassis and engine technology updates.
The range experienced several significant generation breaks. Initially based on the REV chassis (2004-2007), it evolved to the lighter and more ergonomic REV-XP and REV-XR platforms from 2008, then to the REV-XS in 2013 for certain models. Engine-wise, the carbureted 800 H.O. (2004-2006) was replaced by the 800 Power T.E.K. (P-TEK) in 2007, then by the direct-injection 800R E-TEC from 2011, offering increased power and better efficiency. In 2014, the rMotion rear suspension was introduced on SE models.
Q : Is my specific model compatible?
R : To confirm exact compatibility with your Ski-Doo GSX 800, please use our year and trim selector on this page.
Maintenance
| Component | Interval | Details |
| Injection Oil | Before every ride | Check level and top off as needed. Running out can cause severe engine damage. |
| Drive Belt | Inspection before every ride; Replacement every 2 400 to 4 800 km or annually | Visually inspect for cracks, uneven wear, or fraying. Replace if any signs of damage are present. |
| Spark Plugs | Every 50 to 100 hours or pre-season | Replace to ensure optimal engine combustion. |
| Air Filter | Not applicable | 2-stroke Ski-Doo snowmobiles typically do not have an air filter requiring regular maintenance. |
| Coolant | Check level before every ride; Replacement every 2 years or annually | Check level when cold. Replace to prevent engine overheating. Use manufacturer-specified coolant. |