Added reply in a thread CR 125 1983 cylinder 1/11/2015 4:37 AM

Started work on the bike today and with the barrel off it is at the end of its life, can't quite work out what has gone on but sure the marks at the base of the cylinder are not supposed to be there

Added reply in a thread CR 125 1983 cylinder 1/4/2015 6:13 AM

there is nothing wrong with the cylinder howver the 86 made more power so I thought an 86 cylinder if it would fit and then tuned and ported would be better place to start than an 83

Added reply in a thread CR 125 1983 cylinder 1/1/2015 2:29 PM

What have you tried so far , I was hoping the 86 cylinder and rod would go on and work well I would like to combine with a 36mm Airstriker Carb as I have modified a 86 airbox and subframe to suit so that should give more air A few more mods to the subframe ... more »

Started new thread CR 125 1983 cylinder 12/31/2014 5:38 AM

I am rebuilding a 1983 CR 125 and the barrell is shot , I have a 1986 barrell and wonder if anyone has ever fitted this on as a mod or hop up The bore and stroke for an 83 is 55.5 x50 and the conrod is 100mm the 1986 is 54 x 54 and the rod length is ... more »

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