98 and 99 400f Differences????

5 replies to this topic
  • Jimmy_K

Posted January 14, 2002 - 03:49 PM


I was wondering if anyone could tell me the differences between the 98 and 99 400s. I am wondering if the swingarms and linkage are the same. As well as any other changes as far as interchangeability. I have the opportunity to trade a friend any parts I want off of his 99, for my 98 before he sells it. Thanks Jim

  • freestyle111

Posted January 14, 2002 - 11:07 PM


swingarm linkage is same,but 99 has different rear hub axlebolt is bigger.

  • MN_Kevin

Posted January 15, 2002 - 03:37 AM


99 has stronger clutch basket.

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  • David_98_YZ400

Posted January 15, 2002 - 05:38 AM


I have to disagree with the statement about the swingarm. If you campare the linkage pivot point in the swingarm of the 98, it is in the center. In the 99, it was moved lower. Yamaha of Troy has a great parts finder / drawings on their web page. You can check there for addtional info !! Good luck !!

  • Hokie

Posted January 15, 2002 - 07:11 AM


I'm pretty sure the swingarm linkage is different.
I have a pivot works kit for a 98 swingarm and it has a different part number than the 99 version.

I'm pretty sure the shock linkage is the same though.

  • freestyle111

Posted January 15, 2002 - 10:20 PM


he was asking if parts are interchangable not identical.swingarm linkage is interchangable[i know because i put 99 on my 98]

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