dudemc
04-30-2010, 01:14 PM
I've got an 05 400ex with hmf slip on, k&n filter I jetted the carb with a 155 main 40 pilot third clip on needle it's an older stock 400ex needle and 1.5 turns on F/A screw. I live in south central indiana ride anywhere from 500 to 900 ft. elevations and 30 deg. to 90 deg in the summer. I havn't done the chop on the plug to check it going to try to next week suppose to get alot of rain in the next couple of days. Just looking for some opinions if that might be lean I'd rather be alil rich than lean and burn a piston up.