Originally Posted by Bikeguy Joe
You'll find that 32-40:1 is even better! Modern oil is good enough to run at that. You'll get more power, better cooling and less carbon too.
I ran a 40:1 ratio for my buddy for 1 gallon and the motor got REALLY HOT! I was scared it was too lean, we ended up draining the gas into a can and I gave him 20:1 I don't think I'd want to run any leaner than 32:1 I run my 20:1 mix as of now and I get quite a bit of power as it is! But I will be leaning out my mixture to 24:1 and see how that goes.