- Nov 18, 2003
I have a '90 YZ125 and run it at 32:1 with Valvoline TC-W3 motorcycle 2 cycle oil. My manual says to run it at 24:1 with Yamalube and 20:1 with castrol oils. This sounds incredibly rich, every one I've asked says they run thiers at 32:1. Am I supposed to run my bike around 20-24:1, and is the oil I'm using okay? Any help to clear this up would be appreciated, thanks.