as was said bigger squirters empty the pump faster with 30cc pumps. my 950 I put 1 50cc on the front and it got rid of the hes. I think this will be more apparent in cool/cold weather. So makes sure engine is warmed up when you go to wide open throttle. Like the dart man said the single plane manifold is a cold man. I too dump gas in when it's 45* for first start.
Something is wrong if you didn't get quicker with E 85. Keep going you will get it. Don