Mercury Snowmobile Troubleshooting

Mercury snowmobiles are a vintage line of snow vehicles that debuted in 1968 and was discontinued in the mid-1970s. Still popular among collectors, the Mercury snowmobile is a high maintenance machine. Keeping a Mercury in good operating condition is necessary for continued safety and enjoyment. According to the International Snowmobile Manufacturers Association, there are more than 225,000 miles of groomed and marked snowmobile trails in North America. An inoperable snowmobile prevents enthusiasts from exploring these trails on their vintage Mercury snowmobiles.

Instructions

    • 1

      Refill the fuel tank. A lack of fuel could be preventing the snowmobile from starting. Check the fuel gauge before refueling to avoid over-filling the fuel tank.

    • 2

      Clean the battery and periodically check the battery cover for cracks. Replace a damaged cover. Inspect the case and vent plugs for dirt and corrosion. Use a wire brush to clean plugs and terminals suffering from acid and dirt build-up. Scrub them with diluted ammonia or soda solution to neutralize any acid, then flush with clean water.

    • 3

      Inspect the drive belt. Excessive wear on the drive belt may cause slippage. Refrain from using full throttle under heavy load conditions. If a worn belt continues to slip, replace the drive belt.

    • 4

      Check the idle tubes, channels and holes for blockage that can prevent the snowmobile from idling. Clean out the idle tubes, channels and holes with compressed air. If the snowmobile still fails to idle, readjust the idle setting to the manufacturer's specifications.