2001 wr to yz flywheel swap

6 replies to this topic
  • brl01426

Posted September 08, 2010 - 05:11 AM


Hey guys, what kinda cash am I lookin to do the wr to yz flywheel swap? Also I don't have to split the case do I? And is there anything I need to do at the same time as swapping the flywheel?

  • William1

Posted September 08, 2010 - 07:11 AM


A lot. You need:
YZ crank
YZ flywheel
YZ Stator
Some re-wiring.
You lose the e-start

Why do you want the YZ flywheel, because it is lighter? If so, there are options available from Trail Tech, I think, perhaps Stealy.

  • brl01426

Posted September 08, 2010 - 11:34 AM


Ok thanks, but it's 01 so no electric start what does that change?

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  • William1

Posted September 08, 2010 - 12:21 PM


Not much, AFAIK.

Why do you want to change the flywheel?

  • brl01426

Posted September 08, 2010 - 05:05 PM


i got a good deal on the bike, and i am a pretty big guy so I just want to get as much power out of it as possible

  • William1

Posted September 08, 2010 - 05:11 PM


Flywheels do not change the power. They only change the delivery.

I assure you, your bike stock has more power than you will need. Do the suspension first. If more power is a must have, lighten the bike, port it, do cams, big bore. A flywheel only changes the ability of the engine to speed up.

But if you really want to go faster, practice.

  • Birdy426

Posted September 08, 2010 - 10:28 PM


For an 01, the cranks are the same...but you will need everything else...stator, rotor (flywheel) CDI box, wire harness...

As William said, it will not change the amount of power, just how quickly the bike revs. A better option if you really think you need more power would be to make sure all the free mods are done and then YZ time the exhaust cam...


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