Got my Chinese sprag bearing 06.4733 replacement, seems to be built better , fit right in, the cages seem to be more robust , and of course more rollersI believe AliExpress is an online only setup so it's going to require ordering via computer.
It was pretty straightforward to do.
Lucky. Are you using the super fast D.D. starter or Prestolite ?Just goes to show that they can be idiosyncratic, as mine with a similar set up (Motobatt 240cca battery), seems to spin in all weather (down to 5 Celsius), although have yet to try it when sitting overnight outside in a NZ frost/winter.