needle help


2 replies to this topic
  • kenny1234

Posted July 13, 2007 - 12:45 PM

#1

hi guys.
i m a bit confuddled with jd instructions(it says blue needle for low altitude/low temp below 50f-red needle for high altitude high temp) i m at sea level but temp is above 50 f and will only touch that on real cold winter i d say 60-70f is average here.
which needle should i be using????? the blue for low altitude even though temp out or red for temp even though altitudes out
i have tried both and bike runs good but cant really tell difference between the 2(prob down to carb bein that awkward to work on by the time stripped and rebuilt i ve pretty much forgotten how to ride my bike ha ha ha ha)
kenny:mad:

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  • GCannon

Posted July 13, 2007 - 01:03 PM

#2

Red = Lean needle = Fatter
Blue= Rich Needle= Thinner, Can't tell you which to use, if you are on the edge between two main jets then the Needle could be used to sway the mid range jetting in either direction

  • KennyMc

Posted July 13, 2007 - 03:00 PM

#3

hi guys.
i m a bit confuddled with jd instructions(it says blue needle for low altitude/low temp below 50f-red needle for high altitude high temp) i m at sea level but temp is above 50 f and will only touch that on real cold winter i d say 60-70f is average here.
which needle should i be using????? the blue for low altitude even though temp out or red for temp even though altitudes out
i have tried both and bike runs good but cant really tell difference between the 2(prob down to carb bein that awkward to work on by the time stripped and rebuilt i ve pretty much forgotten how to ride my bike ha ha ha ha)
kenny:mad:



Here is a link that talks about different temp / needle settings.:thumbsup:

http://www.thumperta...405#post1793405




 
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