Carb tuning

[Soup]

OK so I bought a rejet kit for my buell because I read online that with the aftermarket exhaust and K&N drop in filter I have it is probably running dangerously lean. I checked a message board dedicated to the blast and one of the guys on there had this to say.

Carb jetting tips :


Engine Carburation and fuel delivery systems and their repair/maintenance/upgrades.

Stock Jetting : pilot/mainjet
2000 - 2001 42/165
2002 - 2006 42/170

*ALL Aftermarket Exhaust(Except Buell Pro Series)use a 1-3/4" Header.

With aftermarket exhaust, but stock intake, rejet as follows :

Below 3500' Altitude - 45/170
Above 3500' Altitude - 44/165
*Note*-With Kerker exhaust which has a 1 5/8" crossover,use a #165 mainjet

For Aftermarket Exhaust AND a hi-flo intake or Modded Stock (EZ mod)...
...rejet as follows:

Below 3500' altitude - 45/175
Above 3500' altitude - 44/170

This makes sense to me, you want to step up the size of the jet when you add an intake and exhaust to take advantage of the extra air you've got.

The jet kit I bought from dynojet 1. doesn't include a new pilot jet and B. recommends a 155 main jet for bikes with an aftermarket intake and exhaust.

I'm more inclined to trust dynojet than some silly man who has dedicated an absurd amount of time to tinkering with a Buell Blast, but what they're telling me to do seems counterproductive. Won't the bike run even more lean with a 155 main jet?

I only have a very rudimentary grasp of how carburetors work, is changing the pilot jet a stupid idea on a basically stock bike?