the spot where i keep my blaster at my buds house has a drag strip where you could run wide open for a mile. big huge field. to test your crab we could swap it on my bike with my mods and if it wants leaner like your testing that could be a sign of something within the carb . and after we get it tuned we could go riding so if you wanted to make an adventure out of it we could. pm me if you want and we will set up a time