Quote:

Interesting, seems like the folks who benefit most from the TBS (or Thruxton) needles have left the stock #42 pilot jet in place. Maybe the TBS or Thrux needles make up for the smaller pilot at most throttle settings, but if you have #45 pilots, you end up too rich across the board.


+1
What pilots does the Thruxton run stock?? If your observation is right, this might back it up.

12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750