Splined Crank

2 replies to this topic

Posted June 05, 2008 - 12:44 PM


Will a certain year splined crank fit better or even work period on a 98' YZ400F? I've searched on this but didn't find a definate answer. Thanks. :thumbsup:

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  • Birdy426

Posted June 05, 2008 - 04:59 PM


The splined cranks were from the 426's, which have a larger small end bearing on the connecting rod. You would need to use a 426 piston and have your cylinder bored and replated, or use a 426 cylinder as well.

  • sirthumpalot

Posted June 06, 2008 - 02:58 AM


If I remember correctly there are some posts on here somewhere about using the splined cranks in the older bikes. Do a search and I'm sure you'll find the exact parts list for parts that are required.

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