2 Stroke Oil Mixture Ratios

Ounces of Oil to 1 Gallon Gasoline

  • 16 to 1       8 oz
  • 20 to 1       6.4oz
  • 30 to 1       4.3oz
  • 32 to 1       4 oz
  • 40 to 1       3.2oz
  • 45 to 1       2.8oz
  • 50 to 1       2.6oz
  • 60 to 1       2.1oz
  • 80 to 1       1.6oz
  • 100 to 1     1.3oz

2 Stroke Porting vs RPM

General port timing to peak rpm

RPM     vs    degrees port is open

  • 6000  120 degrees
  • 7000  122 degrees
  • 8000  124 degrees
  • 9000  126 degrees
  • 10,000   128 degrees

Leave a Comment