How to set up 2010 yz450f athena 500 big bore

1 reply to this topic
  • allanhanes

Posted March 11, 2015 - 10:51 AM


I'm looking at installing a athena 500 big bore on my 2010 yz450f. I am wondering what i would need to adjust the fuel and settings. can I use gytr power tuner to adjust this and if so what would the settings best suited for this set up. I currently have the power tuner and was hoping i can make the adjustments needed with this unit. I am into light track riding, ice racing and sand dune riding. Looking for power gain more then anything.


Thanks Jamie.

Edited by allanhanes, March 11, 2015 - 10:53 AM.

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  • darenSM

Posted October 25, 2015 - 10:15 PM


hey, did you ever end up installing the Athena 102 bore kit? I'm looking to replace a worn cylinder and want some feedback on what power the 102mm bore makes.

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