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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KTM 525 Crankshaft
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[QUOTE="mattyg587, post: 932469, member: 36918"] Eric: This is the strangest thing I've seen. The bike (2004 KTM 525 SMR with less than 500 miles) started making a strange 'tick tick" from then engine cases. A quick trip to the dealer showed silver flakes in the oil and when torn down it appears that the inner race of the crankshaft bearing has started to pit. What's unusual is that only 1/2 the inner bearing race has suffered this fate, the other half looks perfect. Recognizing that the bearing race is spinning at the speed of the crankshaft (up to 10,500 RPMS) why would it effect only the top half of the race and not the entire circumference? see picture at: [url]http://www.visordown.com/forums/attachment.php?attachmentid=46301[/url] MattyG #94 Expert LRRS/CCS [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
KTM 525 Crankshaft
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