I understand all the controversy! And now that 4 of the greater minds are here!:
I had de-linked the brakes on my '86 and gone to the R1 calipers. Now that I have bought a "Brand-Used" '88 I am moving all of that to it. Including the forks from the '86 (The '88s look stupid with the EAD on the sides!) I am selling the '86 to a friend and it is his first big bike so I figure that stock is best for him.
I took the metering valve off of a parts bike I have and installed it. It seems to be working OK and holding the pressure. Knock on wood!
One other issue that I'm having is that if I accelerate hard, the bike goes flat at either 3500 or 4500 RPM depending how hard I'm accelerating. If I ease thru' it (as much as I can "ease thru' it"!), it's real smooth. Also, If I just cruise along at about 3000 RPM, it has a barely noticeable stutter, like one cylinder is kicking in and out. I have checked the diaphragms on the two back carbs and they look OK, but I haven't checked the front two yet. I have also changed the plugs, fuel filter and I've run a couple of cans of SeaFoam and one can of K100 through it.. Any ideas? (I can't believe I asked that!)
(And I'm sure Gary wasn't calling me a less experienced rider!)