Originally Posted by deserteagle56
After reading several posts regarding carb mods over on XT225.com, I went with a 42.5 pilot and 130 main. One washer shim under the needle jet, and 2.5 turns out on the pilot screw worked best on my bike. These mods made all the difference in the world to my bike - it runs cooler and doesn't backfire nearly as much when I back off the throttle. Runs great at all altitudes and in all rpm ranges. it might be my imagination but now when I use my 16t countershaft sprocket it seems like I can hold 6th gear longer going up hills.
Thanks! Is the rest of your bike stock or did you change/open up the intake and/or exhaust? I don't want a louder bike so I don't plan on changes to the snorkel/intake or exhaust.