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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 Puma 340 Snowmobile (1970-1997)
The Arctic Cat Puma 340 is a snowmobile model produced from 1970 to 1997. Known for its reliability and straightforward design, it consistently featured a 339cc to 340cc engine throughout its long production run. These fan-cooled engines, sourced from various manufacturers like Hirth, JLO, Kawasaki, and later Suzuki, provided modest but dependable power, making the Puma 340 a practical choice for recreational use. Over its nearly three-decade history, the Puma 340 saw several notable changes. In 1970, a new "short" chassis design was introduced. A significant hiatus occurred in the early 1980s due to Arctic Enterprises' bankruptcy, with production resuming under Arctco in 1984. The mid-1990s brought a new body style in 1995, sharing its chassis platform with other models like the Jag, and commonly featuring a Suzuki twin engine. Trims varied, including the Puma Mod in 1970, engine-specific versions in 1971, and later the Puma, Puma 2-Up, and Puma Deluxe in the mid-90s. Q: How do I ensure this part fits my Arctic Cat Puma 340?
A: To confirm compatibility, please use the year and trim selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil Filter | Not applicable | The 2-stroke engine of the Puma 340 does not use a conventional engine oil filter. Oil is pre-mixed with fuel or injected directly. |
| Drive Belt | Regular inspection, replace as needed | New belts require a break-in period of approximately 40 km at moderate throttle. Inspect frequently for wear, fraying, or cracks. Lifespan can vary from 1,600 to 3,200 km depending on usage. |
| Spark Plug | Annually | Generally replace before the start of the snowmobiling season for moderate use. Aggressive riding may require more frequent replacement. |
| Air Filter | Every 40 to 80 hours or after each ride in dusty conditions | Inspect frequently. Clean if lightly soiled and structurally sound, otherwise replace. Some riders clean after every ride in dusty environments. |