Re-doing a jet kit

[TLRam1]

  Only complaint is the mileage.  When the bike was too lean I was pulling ~40mpg hitting the reserve at right around 105 miles.  My first 2 tank fulls this weekend were almost 30mpg on the nose    I know from reading that some people get around that, and it was 2-up averaging 70-75mph with a bit of wind, but still.  That's a 25% reduction in mileage.  That sound right to anyone else?  I'm gonna check for leaks when I get home.

30 MPG sounds low, I hit that but I would be running 85-95 on the hwy. What type of shield do you have? With 42 pilots 2 7/8s I would say is too rich.

[JLeather]

No windshield.  It does smell a touch rich at idle.  Not blacken-the-plugs rich or anything, just a touch.  It doesn't let out any smoke at any time, whether a smooth roll up from 2k or a WOT blast at 5k.  I *might* drop the needles back down a notch (maybe a half notch by usig another washer) but that's a lot of work.  I'd figure a 25% reduction in mileage oughta equate to some black smoke if I had it that wrong.  I'll recheck all the bowl screws for tightness and drop the idle to ~2 5/8 - 2 3/4 and see how she does.  Could the idle adjustment really affect overall fuel consumption that much?  Also, I don't remember what sprockets I'm running.  I thought they were roughly stock, maybe a tooth or too higher on the rear.  I'll check it all out tonight when the carbs come back off.  Tomorrow morning at 8 I'm leaving for my long ride, gonna put atleast 2000 miles on over the next few days.  Gonna be hitting a lot of gas stations at this rate

[TLRam1]

No windshield.  It does smell a touch rich at idle.  Not blacken-the-plugs rich or anything, just a touch.  It doesn't let out any smoke at any time, whether a smooth roll up from 2k or a WOT blast at 5k.  I *might* drop the needles back down a notch (maybe a half notch by usig another washer) but that's a lot of work.  I'd figure a 25% reduction in mileage oughta equate to some black smoke if I had it that wrong.  I'll recheck all the bowl screws for tightness and drop the idle to ~2 5/8 - 2 3/4 and see how she does.  Could the idle adjustment really affect overall fuel consumption that much?  Also, I don't remember what sprockets I'm running.  I thought they were roughly stock, maybe a tooth or too higher on the rear.  I'll check it all out tonight when the carbs come back off.  Tomorrow morning at 8 I'm leaving for my long ride, gonna put atleast 2000 miles on over the next few days.  Gonna be hitting a lot of gas stations at this rate

No I don't believe the idle screws would affect mileage that much, doing half a move on your needles along with idle screw adjustments I would think will remedy your issue. Having some decel pop is normal, eliminating it would probably throw you on the rich side. 

[JLeather]

I think it needs a half clip less needles now.  The needles are 3rd from the top and I just put about 1300 miles on it this past week to NC and back from MD.  The bike now gets between 37-40 depending on hills/wind/speed.  It seems ok, but I did notice that when I got it really hot (a few hours of flogging it up and down the blueridge parkway) it runs a tad worse than it does when it's a bit cooler.  It makes me think it's still just a little bit rich.  if I feel up for it I'll move the needles up to the 2nd from the top and put a .020 shim under there for like a half-clip adjustment.  But I don't feel like working OR riding at the moment so we'll have to see.