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Author Topic: Carb Tuning  (Read 5890 times)

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Re: Carb Tuning
« on: August 15, 2016, 08:34:10 am »


...................It idles great... seems just a bit rich on the needle now so I have to get a new stock needle so I can lean it out.


   

What throttle position does it seem a bit rich.  If it seem a bit rich from about 1/8 to 3/8 throttle opening install the next leaner needle jet and or.......Measure the old needle at the straight portion of the needle a few mm above where the taper begins and compare the diameter of the new needle at same distance from equal clip positions.  A difference in needle diameter of .0004" will make a noticeable difference in the 1/8 to 3/8 throttle position. 

 

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