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Discussion Starter #1
i'm running the #42 pilot jet my bike came with
0.75 turns out seems about right,as per manual
i'd feel better if it were between 1-2.5 turns
is anyone running a #40 pilolt jet on their 2008-2011 400exc-r ?

how come the 450's and 530's get the #40 pilot jet?

cheers
tools
 
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