WARNING : don't buy this product


21 replies to this topic
  • grayracer513

Posted December 02, 2007 - 04:44 PM

#21

they sent you the wrong fuel screw....that may very well be from a 250f

The 250F takes the same screw as the 450. Some of the early YZ400's had a different one, though.

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  • Family Man

Posted October 05, 2008 - 10:17 PM

#22

if you check in the jetting section most of the aluminum fuel screws are not machined to the right size, they recomend the brass ones. I too purchased a pro cercuit fuel screw and it is too short also. The bike wont cut out when the screw is fully turned in, Ive re-installed the stock brass.





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