I removed the air filter foam and it allowed maybe a tiny bit more throttle before the four stroking starts. Since leaning the mixture a little bit seemed to help my next step will be to move down from a 100 to an 88 main jet.
Does the needle affect the last little bit of throttle travel? If so, maybe I should lean it a bit also?
I'm looking at a temp gauge that loops around the spark plug
Does this look like a good one for tuning?