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Superkarts! USA - Rulebook & Updates

Updated Mini ROK PDF and Supplemental Rules effective January 1, 2013 Print
Sunday, 06 January 2013 20:37
Here is a summary of the changes that are reflected in the 2013 Mini ROK PDF and supplementary rules posted above:
  • Weight of crankshaft and tolerance changed slightly.
  • Opening angles of port timing now specify 5mm width of .2mm shim to be used instead of 10mm.
  • Cylinder (page 11). Dimension of exhaust port length added: 49 +/- 0.2 mm.
  • Cylinder height changed from 71.55mm +/- .3 to 71.65 +/- 0,2
  • Piston now will have “Vortex” cast inside. Mandatory to use starting July 1, 2013.
  • Spark plug specifications added.
  • Spark plug cap specifications added.
  • Spark plug washer or head temperature gauge sender must be in place.
  • Weight of clutch housing changed slightly.
  • Plastic silencer adapter specified either black or grey acceptable.
  • Reminder that the RLV air filter is mandatory starting January 1, 2013.