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Dirt Bike Brands - Other
piston slap and powervalve rub -pics
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[QUOTE="freakystyley, post: 1142620, member: 73918"] so I finally got around to diggin into the '95 YZ250 I thought had a bad crank bearing. I found the piston to show what looks like powervalve rub - I posted a few pics in my gallery here [url]http://www.dirtrider.net/gallery/browseimages.php?c=3&userid=73918[/url] - what I though sounded like a bad bearing might have been piston slap - the piston skirt is worn a lot (67.66mm) on lower back side - may have been the source of my noise? - crank bearing "feels" smooth - slight rub at TDC - but crank is still in the case...rotor/mag and clutch still installed - don't really want to crack it if the top end is to blame. Crank "looks" clean, no burns, no pits, etc. And no debris came from the case after a quick premix flush - what can you tell if anything from these pics? (other than I suck at taking close up photos!) [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
piston slap and powervalve rub -pics
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