I have changed the brake pads on my motorbike, but now have no braking power. What's the problem?

The front brake pads on my suzuki SV650 were quite worn. It seemed like a simple enough job, so I bought the brake pads and fitted then myself. Now the brake lever is really 'spongy' and the bike has extremely little braking power (I wouldn't ride it in this state). I had quite a bit of trouble getting one of the pistons back, and am wondering if this has something to do with it.



Any ideas on how to diagnose and repair, would be greatly appreciated.



Thanks,



DaveI have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
it probably has air in the lines..you can bleed it,,



what you can do is pump the brake lever about five times or more and keep it squeeze



then loosen the bleed valve in the caliper a quarter turn fluids will come out



then tighten it again and release the lever, be sure to tighten it first before you release the lever,,



repeat it again and again until no more bubbles come out and i if you have a good brake

**** (don't forget to fill the reservoir with brake fluid, if it runs out of fluid while your bleeding the system it will suck air and you will have to start over again)I have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
Somethings probably seized.I have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
Try pumping the brake lever a few times (5-8) times, if that does not firm up the feel of them you most likely let air into to brake lines %26amp; they will require re bleeding of the brake lines.I have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
put the old pads back in and see if it resolves the problem, if it does your discs are worn and require replacing, as the new pads being a flat surface cannot grip on them, if the calipers are faulty they need to be replaced!I have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
didnt check brake fluid

didnt bleed brakes

added the wrong brake fluid dot

and last brake caliber bad most likely didnt bleed or check fluidI have changed the brake pads on my motorbike, but now have no braking power. What%26039;s the problem?
Brakes can be tricky but if you had trouble getting the piston back that's where I'd start. Put old pads back in and apply brakes to get pistons out. Take out pads remove dust boots and with a soft bristle brush clean all the expose piston areas. You can then apply special brake grease to pistons. Refit boots and try brakes. If you still have a problem then I would replace brake fluid with latest DOT fluid. Get the old fluid out of reservoir with paper kitchen towel. Dip towel in fluid and watch it disappear. when fluid is replaced try brakes again. If still spongy you may have to think about servicing master cylinder. Allow about 50 to 100 miles to bed pads into irregularities on disc surface.