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View Full Version : fuel mixture screw



srooney_12
07-18-2005, 08:21 PM
doing jetting on 2005 400ex with moose slip on and k and n filter.
tried a 155 and 160 but she is still running a little lean. haven't moved the clip on the needle yet. also the mixture screw on the 05s isn't a flathead, it is kinda like a semi circle.

any suggestions