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Description
Direct replacement to your original unitPlug-and-play, direct fit, easy installation.Two keys includedConnector includedAll product shipped are tested
Technical Specifications
- MFG. Part Number 01-118-19
Vehicle Information
Moto-Ski MS-18 634 Snowmobile (1969-1971)
The Moto-Ski MS-18 634, a prominent snowmobile from 1969 to 1971, was powered by a consistent 634cc Hirth 171R engine delivering 36 horsepower throughout its production. This model was a key offering in Moto-Ski's lineup, known for its robust performance. While the core engine remained unchanged, the MS-18 634 underwent notable design and functional updates across these model years. In 1969, it received a new cowling with dual headlights, improved bogie wheel configuration, and an 18-inch wide track. The 1970 model year brought a redesigned cowling with rectangular headlights, updated seat styling, and new ski handles. By 1971, the MS-18 634 featured a completely redesigned nose and cowling, a change in seat color for some variants, and significant track system modifications, including a single sprocket track and an integrated backrest/tool compartment. These updates aimed to enhance aesthetics, comfort, and performance. Q: How do I ensure I select the correct parts for my Moto-Ski MS-18 634?
A: Due to the design and functional updates between 1969 and 1971, it is crucial to select your specific model year using our year/edition selector to guarantee compatibility.
Maintenance
| Component | Interval | Details |
| General Lubrication | Every 25 hours of operation | Lubricate the drive chain, the two front axle bearings, the driven pulley eccentric bearings, and the four ball joints of the tie rod ends and the nylon bushings of the steering handlebar. |
| Fuel Filter | As needed | Clean or replace if the engine lacks acceleration or power. |
| Spark Plugs | Every 50 to 100 hours of operation or before the season | Check and replace if faulty or fouled, or if the engine fails to start or lacks power. |
| Drive Belt | Every 2 400 to 4 800 km or when signs of wear are present | Inspect regularly for wear, cracks, or damage. Replace if necessary. |
| Air Filter | Every 25 to 50 hours of operation | Inspect more frequently in dusty or muddy conditions. Clean or replace as needed. |
| Summer Storage Preparation | Annually (before storage) | Disconnect fuel lines, empty and rinse the fuel tank, then run the engine until it stops to dry out the carburetor. |