Hi all. At last getting near the end of my SRX 6 project & have connected the battery. All OK except indicators. They worked at first but now there's just a sound like a buzzing bee coming from the flasher unit both left & right & no flashing

Can this be a knackered unit? Earthing problem? Did I read a post way back from Steve saying there was a cheaper more readily available flasher unit than Yamaha's stock item?
Next question- rear brake. The master cylinder piston was seized & I had to refurbish it with a new piston kit. When I bleed it there seems decent flow to the outermost side of the caliper (ie fluid is coming through quite well), but on the other side there doesnt seem to be enough pressure & the fluid comes through, but not strongly enough in my opinion. Does this sound like a caliper problem or master cylinder problem? I popped the caliper pistons out, cleaned it (but didn't separate it) & put new piston seals in. There's still no pressure although I can feel the pistons moving slightly when I push the brake pedal. Help!!
