R1/R6 BRAKE CONVERSION ON 1992 FZR 1000 EXUP

[Exup198]

Hi Guys,
In first place compliments to everyone for the precious advices.
I'm planning to convert my 1992 FZR 1000 to R1 blue spot front calipers considering that they are bolt on.
Now my doubt it's about the front brake master cylinder; from what i've understand the R1 brake master cylinder it's the same of the FZR one so i can reuse the fzr one and replace only the FZR lever with the R1 lever? It's correct?

[chump]

Why would you replace the lever? No need to.

[Stig]

R1 master is different bore size to FZR

You will need R1/R6 master to match blue spots. If you use original master it will make the blue spots feel vague

http://www.exup1000.co.uk/tech_info_area/brakes.htm

[Exup198]

Ok, message understood. R1 and R6 master cylinder are the same size?
Only R1 and R6 first models until what year?
Another "big" problem to solve now; seized exup valve, terrible noise at idle.
Obviously exup valve seats worn, worn bushings etc. I will read the next topic!

[Stig]

Early R1 and R6 are 14mm bores 98-03

Later R1 radial master will also work

Exup valve seizes. Difficultly is removing bolts without snapping them. Heat up casting around bolt holes until red hot, then turn bolts out. Rare for bushes to wear