Hi.

I got a Titan circular saw from Screwfix a couple of years ago.

The brushes had worn down to the springs about a year ago. I had contacted
Screwfix who then directed me to a spare parts supplier. I then bought a new
set of brushes. I have since installed these.

Ever since then I've always had a lot more blue sparking from the commutator
(visible through the ventilation vents). I put this down to the brushes
bedding in from a flat surface to a curved one.

Now tonight, whilst cutting pallets, I now have yellow sparks coming from
the other end of the motor.......

Is this something I should be concerned about? What is causing it? is it
repairable or shall I need a new circular saw?

Stephen.