K&N E-3495 Air Filter set up with stock exhaust cones removed and four 1/2" holes in each.
With a little more digging the main is a Keihin which crosses to a 162.5 mikuni and I found the box R on the pilot it's a little mashed looks like someone had a little trouble getting it off under the magnifying glass it still looks like 57.5 but with the box R it's probably the stock 37.5. played with the PMS out to 3 3/4 stopped the decel popping
Took it out today for a little playtime, it handled like all the Stars with style and grace, love the torque in the twisties tons of bottom end. Think I might be in love.
thanks for the quick response.
Like PB said, your PMS is way to far out. The K&N filter setup and the stage 3 exhaust, would let you run a 37.5 Mikuni Pilot, and a 167.5 Mikuni Main, quite easily. Is the AIS
still on the bike? If so, I'd remove it. The AIS will cause the decel popping in the exhaust. You can get a kit from Barons, or, some of the guys use used .45 shell casings, to block the holes in the heads.
Other things that can cause decel popping, are intake leaks from bad seals at the manifold to head joint, Coasting enricher cover cracks, or exhaust leaks at the gaskets. Its not uncommon for people to try and mask problems with jetting or air leaks, by turning the PMS out to far.
Have you checked the needle in the slide yet to see if it is a single groove, or a multi groove? Make note of what is above and below the clip on the needle, and if it is a multi groove needle, what groove the clip is in.
If you get the Pilot where it needs to be with the Mikuni 37.5 Pilot, put a 167.5 main(you could probably even run a 170 if you wanted) in and get the needle set right, the bike should perform better. Then you can put the PMS back to about 2 1/4 out, from lightly seated....before it vibrates out, and you lose it.