Its got a "d" shaped head on it. I have the bit that takes it out but I see that alot of people just use a wire crimp and form it into a "d" and they say it works
And you can then replace it with an up to 05 screw with a slot in (don't lose the spring, washer and 'o' ring) or buy the extended fuel screw from the CRFSONLY shop[
I have the t handle fuel screw to put in. Any ideas where I can get the wrench. I put in the power up parts but I need to do some fine tuning. Bike seems to run a lot better but has a huge flat spot when you crack the throttle wide open. Thanks for any help.