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Problems with Idle

930 views 2 replies 2 participants last post by  DirtDragon 
#1 ·
I have 2 YFZ's with lid off and baffle removed. One is jetted perfect with YZF needle on 3rd clip, 168Main, and 48pilot. The 2nd one is jetted with YZF needle on 3rd clip, 170main, and 45 pilot.

The first one idles very smooth with no skips. The second one idles fine as well but skips like the timing is off or something. I have messed with the jetting and it does not make a difference. Could the valves be out of adjustment? Not really sure what else could cause this. They both run strong and are the same performance wise but the idle is the only difference. Any suggestions?
 
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