Carb question
Allow me to share my experience with Dynajet. I bought a 2005 1100 Classic from the original owner (personal friend) who had a Harley Davidson/Kawasaki/Yamaha dealer (where it was purchased) install full 2 into 2 Cobras and a K&N filter and the dealer installed Dynajet mains...110 front, 108 rear...which, according to the conversion charts, are leaner than the stock Mikuni jets were. The Dynajet needle is .070" at the tip, the original Yamaha needle is .0625" at the tip, with similar differences a half centimeter from the tips and at a full centimeter from the tips...so if anyone can say their Dynajet kit is richer than stock is, they got a different kit than this bike got.
I am now running Mikuni jets: 115 front, 112.5 rear, stock needles with an additional .020" spacer and the pilots are 3 turns out. As for not turning pilots further than 3 turns....there are plenty of threads above my pilots, and the rules is they can be turned out 4-1/2 turns and then it is time to go up one pilot jet size.
My bike went from a dangerous, hesitating, balky, forever to warm up, stalling PITA to very smooth performance.
As for fuel mileage...I rode the bike home from the original owner...a distance of 102 miles...averaging about 70-75 mph on the turnpike and about 45 mph on the side roads and figured I'd gotten 38.6 mpg for that trip. So I have somewhat of a base to compare when I make the trip again with the new set-up.
Oh, I also removed the AIS.
I am hoping I can turn in the pilots a bit, back towards 2 to 2-1/2 turns. Many think the pilot does not affect mid-to high throttle mileage...but if you look at that Mikuni BSR37 illustration, you'll see the pilot influence extends into WFO.
I think unless you have moved into cams there isn't much advantage to removing the stock needles for something else.