Hi, in accordance to my repair manual for SUZUKI RM 250 (89-95) I can tell you that from 1992 on the mixture should be 32:1.
That´s just a information taken from the mentioned book and I can give no further guarantee that the information is totaly right. Regards Kicking-Wolf
(Suzuki RM 250 - '91
KTM LC4 600 - '93)
what means 20-1 gas mixture for 1984 Honda motorcycle atc 250 r
50:1
For a 1982 RM250 2-stroke the gas and oil mixture is 32:1. For the engine oil it is 10w 30. The best to get is castrol full synthetic.
30:1 is recommended in the manual.
Either gas/oil ratio is off or the jetting needs to be changed.
50:1
Two stroke motorcycle's smoke because there is oil in the gas. If you put too much oil in the gas it will smoke more. Make sure the mixture is right for your bike. But always go with rule of thumb " a little more oil is better than less oil"
Suzuki 163 Phlolina Yellow or later known as Aspen Yellow
well I have a 2000 Honda 70R and it runs straight gas its a 4 stroke not a 2 stroke.
when your motorcycle leaks gas
To calculate the partial pressure of a gas in a mixture, you multiply the total pressure of the mixture by the mole fraction of the gas. This gives you the partial pressure of that gas in the mixture.
The partial pressure is the pressure exerted by just one gas in the mixture.