tskim
Guest
Hello,
I have too little roll back which cause a small dragon front wheel. After replacing the brake fluid I noticed this behavior. I do not know if it existed before since I did not check before the change of the brake fluid.
First I thought it was air in the system but I have flushed the system from the brake caliper to the ABS unit and from the ABS unit to the handle bar. No improvement. The pistons were pushed back.
When rotating the wheel I can feel a slight drag but it is not equal during the full revolution. If pushing the pads back the wheel rotate freely. The drag seems to be on both calipers but slightly more on the left hand.
When I flushed the system I first did it from the right hand caliper and then the left hand. I have done this twice but no improvement. The clutch lever feeling is not as it was air in the system. It is not firm but similar to other BMW bikes.
When I checked for any air in the system I placed some brake fluid and worked a little with the caliper pistons. The pistons closest to the brake hose are a little harder to move than the other. Still, it demands some force to push the pistons to the most inner position.
What do you think?
Is it still air in the system? If so, were could the air trap be?
Caliper problem?
I have an 1150GS, YM 02, ABS but no servo.
Thanks for the tips in advance
I have too little roll back which cause a small dragon front wheel. After replacing the brake fluid I noticed this behavior. I do not know if it existed before since I did not check before the change of the brake fluid.
First I thought it was air in the system but I have flushed the system from the brake caliper to the ABS unit and from the ABS unit to the handle bar. No improvement. The pistons were pushed back.
When rotating the wheel I can feel a slight drag but it is not equal during the full revolution. If pushing the pads back the wheel rotate freely. The drag seems to be on both calipers but slightly more on the left hand.
When I flushed the system I first did it from the right hand caliper and then the left hand. I have done this twice but no improvement. The clutch lever feeling is not as it was air in the system. It is not firm but similar to other BMW bikes.
When I checked for any air in the system I placed some brake fluid and worked a little with the caliper pistons. The pistons closest to the brake hose are a little harder to move than the other. Still, it demands some force to push the pistons to the most inner position.
What do you think?
Is it still air in the system? If so, were could the air trap be?
Caliper problem?
I have an 1150GS, YM 02, ABS but no servo.
Thanks for the tips in advance
