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Contributor
17 Answers
- Posted on Apr 12, 2010
Re: What kind of oil does my 2003 rm 125 need
For the gas tank= 2-stroke motor oil mixed at 32:1 *stock mixing ratio* [that's 32-parts gas to 1-part oil]. **[I personally use a 40:1 mixture for trail riding,..and 50:1 mixture for racing at the local MX track].
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