I was given an old craftsman 2.3/16 with a bad s.s.module. Ive recently found out it is a poulan micro 25. The cylinder,ports, and piston seem to be in excellant shape. Ive ordered the new module, it will be here in a couple days. Then Ill try to fire it up. I dont know, but presumming it is 25cc? I have some cutting and grinding to do on the case and flywheel. Anyone done one of these? Im curious on the peformance stats. I would be gratefull for any tips and help you all could give. when { or if} I get this one going, I have a newer poulan { a little bigger I think} out in the garage that will be the next project. Ive got two big birds in the shop Im hoping to use them in. A Bryons christen Eagle and a scratch 97 in. wing GeeBee model E. Both birds are under 14lbs. Im hoping these engines will be the power they need. Thanks again for any tips and insight I may recieve! Al