04 YZ85 jetting problem

[MXracn746]

I have a 04 YZ85 that's running rich, mostly from no throlle to just 1/8th throttle. Also at half throttle it seems to load a little bit from what I can hear. It has good compression and fairly new top end. Also it has V-Force reeds. I've got the airscrew at 2 turns out, The pilot jet is a 42, STD is a 45. Put in a leaner needle and it's on the top clip. It has a new gasket on the top of the carb and I've leaned the main jet down one from the STD 138 to a 135. Any ideas? Running 87 pump gas. Should I try some Sunoco race gas. I also readily have 94 Shell available. thanks for any advice.

 

[MXracn746]

Compression at 140psi. Ran 93 Sunoco today, ran a lot better. Actually might richen it a tad with the good gas in it. Thinkin just at idle I'll try in 1/4 turn on the pilot screw. The plug is tan, so that's good.