1998 yz400f /426?

1 reply to this topic
  • Bentley777

Posted November 21, 2007 - 08:31 AM


I have a 1998 yz400f and I was wondering if a stock 426 cylinder and piston would bolt up and work properly.

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  • Birdy426

Posted November 21, 2007 - 10:28 AM


Not quite. You need the 426 rod as well. They made the small end bearing bigger on the 426 as it was kind of a weak point onthe 400s. Once you do the rod, everything else will work fine. Rod, pin, and bearing will run about a benjamin at the TT store, and another benjamin or 125 to rebuild and true the crank.

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