Upallnight
Member
I'm running premix in my 95 Sportster 40:1 and still have the oil tube to from the oil tank to the rotary valve at the bottom of the crankcase. The engine appears to smoke quite a bit. I'm wondering if the oil for the rotary valve is also being burned since the crankcase is used to feed the cylinder with gas and air. Could I get by with just the oil in the premix?