great video bro how are the brakepads regarding stopping power compared to stock ones on 250 or 200 as they are not sintered like ones on the 390 ? planning to use on my 250 since stock are okay but not great and are these semi sintered ?
First check brake fluid is at proper level in resovoir. Next remove both brake pads and rub sideways on 220 grit sandpaper. Put it back. If braking is still bad, you can try brake bleeding as a last resort. You'll need 8mm ring spanner, Clear rubber hose and a empty half litre bottle. And a friend to hold down brake when you open/ close the valve. You can watch other videos on doing this as I haven't made one yet. But recommend you go to mech.