Started putting fluid back in 888,using Mityvac,clutch no problem.Front brakes refuse to obey,bubbles stop,but theres a constant fizzing.Took out bleed screws,wrapped threads in PTFE.Tried manual bleeding,still spongy lever that comes back to the bars.Tried cracking the banjo at master cylinder,no change.Any ideas please.The brake fluid that has just passed through,saved in a jar,can I use it again
Tried to show the "fizzing"in pic,Ive never seen it before.