i have ran 6ounces of 2 cycle oil to 1 gallon of gas
20.5 oz
55
190 in the ratio 7:6
6.9:1
1982-87 yz 490 - ngk br8es - 0.024 " , 1988-90 yz490 - 0.032 "
490 feet
Step 1 Drain it Step 2 fill with 2 stroke oil
490 = 490
The ignition temperature of kerosene (#1 fuel oil) is 490 degrees fahrenheit (254C), the same as all fuel oils.
-490
depends on yr, weight and gear ratio. I had a 94 and it was bout 80+, but hard to gauge when trail riding.
main jet#370 pilot jet#50 throttle valve#2.0 needle jet Q-2 hope this helps you.