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2 Stroke fuel/ oil ratio

Discussion in 'Technical and Troubleshooting Torque' started by Lucas-4, Sep 15, 2015.

  1. Howyd,
    I have a 1991 Kawasaki KDX250 2 stroke bike, I'm just wondering what sort of oil to fuel ratio I should be working off?

  2. I would think around the 40:1 would be good
  3. Thanks for that
  4. I don't know the bike at all but I thought most if not all 2 strokes of that era used a separate oil tank and injected the oil under pump pressure. All the Suzuki's and Yamaha's I owned did. Have to go back a long way before I can think of when I had to mix fuel for a bike.
  5. modern 2 stroke motocrossers still need the oil to be added to the fuel before putting in the tank.

    We run 40:1 on a YZ250, but it can vary depending on which brand of oil you use, some are 30:1 I think.

    Cant hurt to ask the dealer where you are buying your oil from.