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Lower-end Rebuild Advice
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[QUOTE="Citidel, post: 1079674, member: 53227"] I am currently in the middle of my first lower-end rebuild (Wahoo!). The bike is a 2001 CAR250. I have already torn the crankcase apart and removed all of the bearings. My question has to do with the condition of the cases. The following are links to 3 pictures of the right crankcase. The last 2 pictures have accompanying questions. Thanks in advanced. [URL=http://pg.photos.yahoo.com/ph/cr250tx/detail?.dir=/9ca2re2&.dnm=3fa4re2.jpg&.src=ph]Pic1: Crankcase overview[/URL] [URL=http://pg.photos.yahoo.com/ph/cr250tx/detail?.dir=/9ca2re2&.dnm=abc1re2.jpg&.src=ph]Pic2: Chipped surface closeup[/URL] Shold I be concerned with the area at the bottom of the crank recess where the finish has slightly chipped away? If so, what are my options? [URL=http://pg.photos.yahoo.com/ph/cr250tx/detail?.dir=/9ca2re2&.dnm=2bf8re2.jpg&.src=ph]Pic3: Bottom cylinder marks[/URL] I assume the bottom of this piston caused these marks. What is the best way to smooth these out? Are they anything to be concerned about? [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Lower-end Rebuild Advice
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