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Message: <blockquote data-quote="Skizza" data-source="post: 192319" data-attributes="member: 3189"><p>So took a mate out for a ride, he rode the RM and I rode my KTM.. The RM went perfect for about 30-45 mins, we where playing in some soft sand (i'm not too sure what my mate was doing as I was on my bike) but to cut to the chase it blew the big end bearing and partially seized, got the motor turning over again so wasn't, fully seized. I'm not sure what caused this to happen, I think it would have got too hot though as it was being revved in soft sand not really moving.. It sucks because i have just rebuilt this motor and now have to do it all again. I'm going to buy a manual and set the bike back to complete stock when I rebuild it again. Anyone have any better ideas why it would have done this? or ways to help prevent it next time. I had a 32:1 oil/fuel mix.</p></blockquote><p></p>