Goatlocker, to do it without removing the gas tank such as trying to use those vacum ports on the right side would be a pain I think and you cant ensure you got them spotless, it actually is a pretty quick job once you do it once. I didnt have the cool link Crossroads provided my first time and it easily became routine. I do it ever other oil change and yes, it makes a differnce.
Cool Blue/Fed, I found SEAFOAM has a spray cleaner as well as liquid for the fuel and it works great!
Only thing I will add is I like using a set of mechanical fingers inside of a sock along with the tooth brush. This also helps to push more sock in the TB for that final spray to help soak up some of the mess from going in the cans.
Last thing I would add (im not for sure if this is on the 100 but on the 92 it is) there is a vacum port for CA emissions located on the right side of the TB and that rubber cap has a history of dry rot and causing vacum leaks. Inspect and replace if needed.
Stand by for some smoke when she starts... hehe
2011 White Vision - Nuvi 550, Lowers, Lloydz 2nd filter, Vic perf filter, CB/Icom, 96 Brake LED's, Clear Signal lens/Switchbacks, VIC Hwy Pegs, Stebel Horn, 7Jurock 15" Shield, PCV, Lloyd ATS and Variable intake, Ness honkers
2004 V92 TC - S1 flash, level 1 slip-on, Ness big sucker K&N, ISO Grips, 4x1.5 Highway Hawg Risers, extra chrome (never too much), JM 2k CB 4' antena, Mustang seat, HD Front TS & Lowers, OD Pulley
Retired Navy SCPO