How to Tune Up a 72 Polaris

Polaris is the manufacturer of a wide line of all-terrain vehicles, Victory motorcycles and Waverunner personal watercraft. However, Polaris is also very well known for making snowmobiles. The 72 Polaris ATX 530 is a vintage snowmobile manufactured by the company in the 1970s which featured a two-cylinder engine. The 72 Polaris requires maintenance, like changing the oil and tuning up the engine. The engine is tuned by cleaning the plug wires and changing out the old plugs.

Things You'll Need

  • Hex wrench
  • Wire brush
  • Spark plug wrench
  • Spark plugs
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Instructions

    • 1

      Remove the two hex nuts on each side of the 72 Polaris engine cover and lift it to the up position.

    • 2

      Remove the spark plug boots from the spark plugs. Inspect the boots and wire and clean with a wire brush, if necessary.

    • 3

      Use the wire brush to clean the area around the spark plugs.

    • 4

      Remove the spark plugs with the spark plug wrench. Screw the new spark plugs in by hand to get them started and then tighten them down with the spark plug wrench and place the boots back on them.

    • 5

      Place the Polaris engine cover back to the down position and replace the two hex nuts.