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Old 03-17-2008 | 08:11 PM
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Mspeed
 
Joined: Feb 2007
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From: , VA
Default RE: Yet another newbie question

Vhayne, if your low speed needle valve is set to lean, it will cause your engine to idle too high and try and engage the clutch. If your idle stop screw is in too far, it might give you too high of a idle as well. I would pull the airfilter off and check the clearance in the carb, it should be no more than about 1 mm open (I use a small allen wrench to check it). For the LSN, I would just unscrew it (richer)a very small amount and see if it idles down when warm. You will see the temps climb really high at idle if your LSN is set to lean. When cold just give it some gas till it warms up. Its a good idea to keep your LSN on the rich side till you get your high speed needle set where you want it, then you can dial in your LSN to where you like it. I recommend using a temp gauge till you learn how to tune by smoke, sound, and power.