Wr 400 engine swap

2 replies to this topic
  • ryan bligh

Posted September 11, 2015 - 02:11 AM


Hi all , well iv managed to put two large holes in my barrel / crank case.its a 1998 wr. What engines will go staight in without to much myther Thanks all

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  • grayracer513

Posted September 11, 2015 - 06:19 AM


WR/YZ 400/426 '98-'01


'02 will require that you use the steel sleeves from your old cases in the rear to fit the swing arm bolt. 

  • ryan bligh

Posted September 11, 2015 - 06:24 AM




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