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| cr250 1973 porting https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=1081 |
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| Author: | jimg1au [ Sun Jul 02, 2006 5:36 am ] |
| Post subject: | cr250 1973 porting |
hi got the barrel of my cr today and the porting looks like swiss cheese.there are ports every where what should the std ports look like.i have a old mt250barrel some where at home are these close to the cr.also the piston on the cr has a big window on the intake side.do std pistons have cut outs cheers jimg sydney australia 
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