05 yz450f mods

3 replies to this topic
  • 98WR400F

Posted August 23, 2010 - 09:49 PM


i bought a new to me 05 yz450f after i sold my yz400f. after riding it around for the first time i was kind of dissapointed with the power. my 400 was built and very fast and im wanting a liitle more of that violent power of the 400 out of the 450. i did some searching and was wondering if i could swap a 04 cdi or get an aftermarket one. has anyone done this or have an experience with aftermarket cdi's. and i already put a full dr.d step system and a jd jet kit. thanks.

  • grayracer513

Posted August 24, 2010 - 07:28 AM


The CDI is where the problem is. Swap it for an '04, and you'll have an '04. The cams and virtually everything else was the same. An '06 unit should plug in, too, but the '04 is better suited to your cams.

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  • 98WR400F

Posted August 24, 2010 - 09:26 PM


can i put the 06 cam and cdi in it and get the good midrange and top end of the newer bikes?

  • grayracer513

Posted August 25, 2010 - 07:47 AM


can i put the 06 cams and cdi in it and get the good midrange and top end of the newer bikes?

Both cams. Yes.

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