Hi i'm new (advice please)

4 replies to this topic
  • wr hoon

Posted September 13, 2007 - 02:57 AM


hello folks.... when i got my wr450f it came with an akrapovic exhaust system in a box which i now want to fit to the bike. I have been told to go up on the main jet from the origional 160 to a 165 which is all good, but do i need to change anything else? Ive also been told to modify the top of the airbox to let more air in, is this a case of just drilling some big holes in the lid of the airbox?

Sorry for all the questions but ive only had the bike a couple of weeks and have a thrist for knowlege! any tips n tricks please let me know



  • Island Boy

Posted September 13, 2007 - 04:55 AM


Welcome! spend some time reading the stickys at the top of this forum then use the search option if you need more information. 90% of the time you will resolve issues by simply doing a search. Good luck.

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  • resinlips

Posted September 13, 2007 - 06:21 AM


The entire snorkel riser piece comes off, no drilling.

  • wr hoon

Posted September 13, 2007 - 06:29 AM


wow................ this site rules.........

Ive read all the stickies and faq's but still cant find anything that tells me what jets n stuff to do to run with the akrapovic system?

i want to put it on desperatly but dont want to damage anything as a result,




  • GCannon

Posted September 13, 2007 - 07:43 AM


Read this:
Most bike in this data base have the free mods and some type of aftermarket exhaust pipe. Indy WR450 has a very extensive Jetting Database from which to start. Them you can make minor adjustments to suit your particular situation.


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