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needle tunning

  1. 2010 400exc jetting

    Off-Road / Enduro
    Hi Just changed 03 450 exc for 2010 400 exc with 50 hrs on it fitted dirt tricks camchain tensioner checked valve clearances .only thing ive noticed is bike hardly needs any choke and seems to run a bit rich .ive cleaned carb and checked all jets which are all standard .Ive heard that some carb...
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