So i have the parts and was just wondering if any type of lubrication should be used on the rubber parts to get them in easier like a drop of dish washing soap brake fluid silicone grease etc or just assemble them dry
and while were at it same deal on the front master cylinder I'm doing that one next
Thanks
Tim
Red rubber grease is also good stuff too + a smear of DOT 4

I also have an F2 with a badly leaking rear m/cylinder. I've stripped it and the actual m/c alloy casing is badly scored internally

So a new seal kit would be a waste of time.
So I've swapped the m/c with a CB1300 unit and it fitted reasonably well - needed a bit of tweaking but its working and back on the road until I can find a decent solution!!!
I may have to resort to getting a sleeve made and fitted? Time will tell.