I'm repairing China and Indian motorcycle.
There are very few of either of those in Poland.
Can I get a work visa with my motor-cycle mechanic skills?
It's not actually technically impossible, but it's so hard that it might as well actually be impossible. You'd find it far easier to simply save the couple of thousand Euro required and then go to Ireland for a sham marriage to a Latvian woman (which gives you the paperwork needed to stay there).