My spool has never wound properly on my Brohter Inov-is 500 and recently is has been getting worse. It winds on really loose and makes the stitch come out wrong. I had forgotten that there is supposed to be a spool net to go over the main reel when winding on and thought maybe it was this being missing that was causing the problem.
I called the local machine repair service, a father and son team messers Tom & Tom Dilley, they told me they could give me a spool cover but was unsure if that was the problem. He said to pop round with my machine and he would have a look. At this point I told him it was a bit difficult as I could not afford to pay for any work just now. It will only be something simple, no charge said he.
I took my machine round and basically what Mr Tom suggested was winding around the tension spring (didn't know that was its name) back to front, so it grabs better - works like a dream!
AND NO CHARGE
Thank you Mr Dilley