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Cracked/Seized Master Cyl Piston. '03 CR250

This is a discussion on Cracked/Seized Master Cyl Piston. '03 CR250 within the 2-Stroke Motorcycles - Honda forum, part of the 2-Stroke Motorcycle Forums category; Have any of you guys had a piston crack or seize in the master cylinder on a bike? I 've ...

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  #1  
Old 06-16-2007, 07:57 PM
DoghouseCR250's Avatar
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Default Cracked/Seized Master Cyl Piston. '03 CR250

Have any of you guys had a piston crack or seize in the master cylinder on a bike? I 've had it happen to me on autos before, specifically on old Land Cruisers, but never on a bike. It seems like the throw has gone out of my front brake, the lever is barely budgin. It has a wee bit, and still works the front brake a bit, but it seems to not stop as well. I could just be delirious, but swear the lever isn't moving as far as it was. It's like the piston goes a tad then stops hard. The pads are in great shape, and the system has no air in it, bleeding is for the opposite prob anyway...
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Old 06-17-2007, 08:28 AM
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Default Re: Cracked/Seized Master Cyl Piston. '03 CR250

Could be a damaged o-ring on the plunger. You might just take it apart and check that. Rebuild master cyl. kits aren't that expensive.
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Old 06-17-2007, 08:43 AM
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Default Re: Cracked/Seized Master Cyl Piston. '03 CR250

Got a rebuild kit on the way yesterday.... Hopefully it'll do the trick!
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