CRF114c Posted December 19, 2004 I Have An 05 Crf250r And Have The Famous Lean Bog. What Does Everyone Recommend? Thanks Share this post Link to post Share on other sites
Dave Hopkins Posted December 19, 2004 Mike, The needle taper is all wrong on these original equipment applications. What you are experiancing is some combo of; Engine not totally warmed up, too rich at idle to get the combustion chamber hot enough to burn the fuel from the accelerator pump, Too lean after it gets off the pilot on to the shank of the needle. Some will say your need to shorten the suirt duration on the accelerator pump. Myself I prefer not to modify that on 250s, open class bikes yes. Go for the JD kit! It will do wonders for the bike and save you lots of time & trouble. Share this post Link to post Share on other sites
