Front brake issues 07 1000

[E-RACER]

Having some weird/dangerous things going on with My stock front brake setup on My 07 1000.first pump sometimes the pedal will almost go to the bar before it stops,other times feels solid!!..also they seem to drag/grab when not using them ..but not always..

Power bled them a few times and at the master but stillhapping!!

I also dont use my back brakes and have a Turbo so no brakes it not a good thing!!

Heard it happen to more 07-08s anyone know why??

Im thinking collapsed line inside where you cant see it?.had that happen to a car back in the day after replacing everything!!!!

Any ideas??..thx in advanced!!!

[benny6d9]

have u checked the pistons inside the caliper? i had this happen on an older yamaha. i took the pistons out and polished them then put new seal back in. brakes were like new!

[E-RACER]

No not yet..

A guy said might be stuff in the small return hole in the master..just weird how the pedal of soft and then solid..like a air pocket but Im sure there is none..

o well ill mess with it..

[oldfart01]

I would do a full fluid change to start. Clean the pistons really well. It is not a known K7/K8 problem.

[Pro-Lux-Racing]

Originally Posted by benny6d9

have u checked the pistons inside the caliper? i had this happen on an older yamaha. i took the pistons out and polished them then put new seal back in. brakes were like new!

+1 I had this happen to my Busa and the brakes locked up on me doing 50 mph and low sided. Took all pistons and seals out, cleaned them and never had a problem again.