Cams, pistons, and igniter are different. Also, all the 1200's used the same Mikuni carbs, but, jetting changed throughout the years. Is this a black motor or grey? To play it safe, I would use 112.5(cyl 2/3) & 117.5(cyl 1/4) mains. This is in the middle of the range of mains used in the 1200 Daytona and the largest for the 1200 Trophy. These should work fine with whatever 1200 you have. Also, check the needle sizes. The larger # goes to cyl 1/4, smaller to 2/3.
Hope this helps.
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