I recently bought a 1998 rm 80 and I do not know what ratio to mix the gas :yikes: . The manual say's 20:1 but the person I bought it from told me it was 40:1. Also, I took the spark plug out and it is a BR9ES. In the manual it say's to use a BR10ES. The color on the BR9ES is a light tan which I think is normal.Could this hotter plug be because of rich jetting or what? Also,should I run regular pump gas or premium?Thanks for reading.
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