It should be "aren't" in the last sentence I wrote, not "are". Most of the new replacement motors are good, they are generally faster too, but doesn't always have more needle punch for some odd reasons. There are new replacement motors with genuinely higher specs than the old standard, but they need to be searched out.
They tend to be more noisy, but I have only had my hands on a few rather low cost replacements. It's hard to generlise amp and wattage since Pfaff, Husqvarna and others more often than not came with double the amps of the basic Singer. Singer made stronger motor too, but I haven't come across it yet. These model 15 clones are as strong as domestic machines get, double the amp will be hard on them at all. I have the basic Singer motor on my 201K and I don't complain at all.
Last edited by Mickey2; 11-11-2017 at 06:54 PM.