Sports Parts Inc. Starter Pulley
11-140 (MFG #: 11-140)
$67.68
Sale price
$67.68
Regular price
$68.99
Sale
-1%
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Sports Parts Inc. Starter Pulley for Ski-Doo Valmont 399 Snowmobile
Sports Parts Inc. Starter Pulley for Ski-Doo Valmont 399 Snowmobile
$67.68
Sale price
$67.68
Regular price
$68.99
Sale
-1%
SKU:11-140
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Description
Technical Specifications
- MFG. Part Number 11-140
Vehicle Information
Ski-Doo Valmont 399 Snowmobile (1970-1971)
The Ski-Doo Valmont 399, produced from 1970 to 1971, was a popular snowmobile model known for its robust performance. Both model years were consistently powered by a 399 c.c. twin-cylinder engine, delivering 24 horsepower with an 8.75:1 compression ratio. This reliable engine platform remained unchanged throughout its production run.
While the core engine and chassis design stayed consistent, the 1971 model year saw an expansion in available trim levels. The 1970 lineup featured the Valmont 399R, which included reverse gear. For 1971, Ski-Doo introduced the Valmont 399ER, adding electric start to the reverse gear option, alongside the continued availability of the 399R. The 6-set bogie wheel system also remained consistent across these two years. FAQ:
Q: How do I ensure I'm selecting the correct parts for my Valmont 399?
A: To guarantee a perfect fit, please use our year and trim selector at the top of the page. This will filter parts specifically for your snowmobile's exact configuration.
Maintenance
| Component | Interval | Details |
| Engine Oil | Not applicable | 2-stroke engine, 20:1 gas/oil mix. No traditional oil filter. |
| Chaincase Oil | Check periodically | Top off with Ski-Doo chaincase oil or SAE 30. |
| Spark Plugs | Annually (before season) | For 1971 Valmont 399R: W-240-T-1 or M-280-T-31. Gap: 0.46 mm - 0.56 mm. |
| Drive Belt | Inspect before every ride; Replace every 1 to 3 years | Replace if width reduced by 3 mm. Check for wear (cracks, fraying). |
| Air Filter | Check periodically | Cleanable foam/mesh type. Replace if excessively dirty. |
| Coolant | Not applicable | Air-cooled engine, no liquid cooling system. |
Maintenance information is compiled from various sources, including period manuals and general practices. For precise intervals and detailed procedures, please consult your model's official owner's manual.