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| 1980 CR250R NOS OEM piston kit https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=628 |
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| Author: | DEW [ Thu Apr 07, 2005 11:04 am ] |
| Post subject: | 1980 CR250R NOS OEM piston kit |
Does anyone know where I can get a 1980 CR250R NOS OEM piston kit? I have a original stock chrome bore, and I am told I need an OEM piston, and they don't make them any more. |
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| Author: | redrocket190 [ Thu Apr 07, 2005 12:25 pm ] |
| Post subject: | |
Wiseco has all the parts you need to re-build your top-end. There is only one twist. If you have an original chrome bore you use 2756CDM rings, if you have a sleeve you use 2756CD rings, assuming the sleeve has not been bored out. They have over-sized CD rings to go with their larger pistons. But they do not do over-size CDM rings, so it appears that one is forced to go with a sleeve rather than a bore and (chrome) re-plating. I don't believe that Vertex or Pro-X do pistons for this motor... |
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