I drilled the front rotor using the same hole pattern as I used on my SR250. The photos show, before, during and after the holes were drilled.
Drilling the Front Rotor
I drilled the front rotor using the same hole pattern as I used on my SR250. The photos show, before, during and after the holes were drilled.
You’ve done an impressive job. I have the same cycle and am having problems with the front brake sticking, have you run into this issue? I’ve done all the routine maintenance stuff in the manual. The rubber boots on the caliper look to be in good shape. The brake lever is firm and stops good for a 1982 motorcycle. After braking, I lift the front end in the air and the wheel barely spins until I push the piston back into the caliper. Seems like my next option is to replace the piston, I haven’t found rebuild kits that have just gaskets/seals. The piston assembly seems to run $80 – 90. It’s not clear to me what part of the assembly makes the brake pads retract once the brake is released. Any info, parts websites, etc. would be much appreciate. Thanks Tony
Thanks. I’ve had sticky calipers on a couple of times and was able to fix them by disassembling the caliper and cleaning everything. I think a combination of road grit and gummy brake fluid builds up on the piston and stops it from sliding smoothly. If the caliper is not leaking, you can probably fix things by dismantling the caliper and cleaning it, the seals and piston. The release of hydraulic pressure causes the caliper to release, the brake pads should “skim” the rotor, but not cause any appreciable drag.
You can order the piston assembly from Ron Ayers for $64.00. Or from YamBits in the UK for about £20.00 (I’ve ordered stuff from them in the past).
Good luck.