thanks to everyone that replied back, i'm going to try running 108 octane straight with no mixture, then see what happens

 

Today i ran staright race fuel, which is 108 octane, and i can feel the difference in top speed. Thank you all for your help!

 

Now i am running straight 110 race fuel, with dj1770 main jet in. I checked my plug, seems to be running hot, because it was light gray to white...Should i turn the screw alittle, or should i change the main jet or what i should do. Thanks

 

you need to tell us the plug color after a full throttle run and then shut the bike off and pull in the clutch when maxed out. the plug readings aren't the best thing to do these days. its just tough to read. i doubt the 170 DJ is too lean.