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View Full Version : '84 250R bore size? Urgent!!



10-24-2002, 12:07 PM
Hey guys, could someone look at a manual and tell me what the stock bore size for an '84 ATC250R is? I have an '81 CR250R that I'm working on for a buddy and his cylinder is wore out and I want to see if a spare '84 cylinder is the same. The '81 is 69mm.
Thanks in advance for the help.

Regards,
Josh WInter

kimmer250r
10-24-2002, 12:13 PM
The bore size for a 81 is 70mm and the bore for a 84 R is 70mm. The cylinders should be interchangable.