Some bikes came with 112s, some came with 115s. It's not a problem.
awesome thanks for the info...
the rebuild is going well. for the most part these seem to be pretty clean... some debris but not really any major corrosion or buildup so far.
one other strange thing i ran into is that under the idle screw and spring i only found a rather flat black o-ring/gasket, no metal washer. the books is that a concern?
again thanks very much for any input.