Cranks!?

[yfz4life50]

So where im from down here in good ol West Virginia there are a bunch of yfz runnin around but in a bunch of the 04's the cranks are goin out including mine and my best friends the shop is way backed up because of all the yfz! So is this happenin to other people or what?

[SRH]

change your oil after EVERY ride....

[Splatter Matter]

call http://www.nmotiontechnology.com/ and talk to John about the oil mod. it will be the best money you can spend on your yfz.you don't have to send your motor ether just the two right case sides. and like SRH said change your oil after every race