BMW R1200RT/R1250RT Forum

The fact that the brakes have not pumped up straight away suggests the seals are gripping the pistons either from dirt on the pistons or dirt behind the seals The pistons should slide nicely and smoothly understood. guess its due time to rebuild the calipers after 100k km on the clock. ty for the h...

sakm wrote: ↑Mon Jan 29, 2024 7:30 pm That to me suggests the calipers could do with a rebuild and new seals

hey sakm can you please explain what concerns you. Is it that seals are damaged?
if i dont see any leaking, is that a sure signal brakes are ok, or would you still do the rebuild in my shoes?

As already said. I would zip-tie it over night before bleeding the system. What has happened is, when you pushed the pistons back the rubber gators have moved on the piston. So when you pull the lever the pistons are pushed out but the gator stays where it is. Zip-tieing it over night will keep the...

EasyRider wrote: ↑Sun Jan 28, 2024 9:23 am When i say "Gator" i mean the "dust seal" just so you know. It just the way i talk. it is only a small amount per piston, but it adds up.

yep, thats how i understood you. brake lever is zip tied, so fingers crossed tomorrow morning :D

As already said. I would zip-tie it over night before bleeding the system. What has happened is, when you pushed the pistons back the rubber gators have moved on the piston. So when you pull the lever the pistons are pushed out but the gator stays where it is. Zip-tieing it over night will keep the...

burridge01 wrote: ↑Sat Jan 27, 2024 9:07 pm Try zip tying the lever up against the handlebar and leave overnight.

ty, i had heared of that trick many years ago, but totally forgot about it. will do a proper bleed first though

Has the bike got servo brakes, does the situation change with the ignition switched on, pre-ride check completed and engine running. No the bike had the "whizzy" servo removed, after it failed. About a year ago, i lost the rear brake while riding. Wasnt pleasant to realize i had almost 0%...

It was over full, i removed exess fluid but still the same soft brake. Guess i need to bleed it to be sure

Hey everyone. I found myself in a bit of a mess after changing the front brake pads. Is there anyone with experience than can point me to a right direction. Problem is i have soft front brake lever right after changing the brake pads. Didnt remove calipers, didnt bleed the brakes, didnt open the bra...

Hey everyone, had the dreaded abs light warning come on. Noticed the rear brake totally without servo power (barely able to slow me down). Front brakes still working. Went to my local bmw mechanic. Computer shows the front brake circuit is within parameters, but rear brake is giving the error. Upon ...

replaced the brake discs this saturday, and changed up the brake pads. Old ones were used up unevenly on the side where brake disc was bent.
fortunately brake calipers did not need rebuilding

The new coil finally arrived, so i went to the mechanic this saturday. After replacing the coil and updating software, performing full diagnbistics, the machine runs much better now. No stuttering, can apply throttle as needed. In addition i noticed i didnt need to warm up the motor for 3+ minutes (...

the mechanic pulled the coil out (still attached to the wire),added his own spark plug to the end of this coil, placed it close to the engine, and tried starting the motorcycle.
there were no sparks flying off the exposed sparkplug, so he said that coil was faulty

just an update for those that have similar issues


went to a new shop, and the mechanic checked if the brake discs were warped, turns out the left one was indeed warped.
im mad at myself for not checking that first


ordered new discs, and should have them installed next week

just an update for those that have a similar issue. Turns out problem is due to a bad coil. went to a new shop, and the mechanic diagnosed it in 5 minutes. They have ordered the new coil, and it should arrive next week. i also asked the mechanic if he recommended replacing coils on both sides, he sa...