I hope you don't mind if I list some non-BW fics here, too.
MariaShadow's profile... she writes some of the best G1 humor stories on ff.net:
http://www.fanfiction.net/u/756016/
On TFW2005... a fic called Passion, written by Vangelus, a guy I sorta know (he has a dramatized excerpt there.. he reads it aloud and sounds so friggin' creepy! He's a fandubber, too, being BWII Thrust's voice in the TFCog fandub! And Victory Greatshot....):
http://www.tfw2005.com/boards/showthread.php?t=94116
PuraJazzBot's G1 fic, "A Twisted Act To Follow":
http://www.fanfiction.net/s/2274090/1/
The Crab's fics, including two BW vignettes:
http://www.fanfiction.net/u/220698/
Straya's "Best Laid Plans":
http://www.fanfiction.net/s/2651227/1/ (features some non-fighter G1 Autobots... and is one funny fic.. let's just say I went into a hysterical laughing fit when I read Wheeljack's line "report in to Sparky and the Cranky Medical Officer"...)
This fic isn't much of an adventure/comedy type, but it's perfect nevertheless. Purple Aussie's "Chameleon":
http://www.fanfiction.net/s/2793472/1/ (it's a drama fic, featuring G1 Prowl acting totally unlike himself... like threatening to shoot his comrades, and preferring to be alone, panickedly trying to get away from Jazz plus that sorta stuff.. "Prowl had been showing up late for shifts, handing in sloppy duty reports, doing very little other than what was absolutely necessary of him...and those were the nicest of his recent indiscretions."... um, I must warn you.. it's a 20-chapter fic...)
http://www.transfan-asylum.org/fanfic/nodoors.htm (PrincessArtemis's humor story, "Why The Ark Has No Doors?")
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And now for some BW fics...
http://www.transfan-asylum.org/fanfic/fantific.htm (FantiSci's fics from Nightwind's Transfan Asylum)
http://www.transfan-asylum.org/fanfic/mcatfic.htm (MCat's fics from the same place)
http://www.transfan-asylum.org/fanfic/neffyfic.htm (NefertariHime's fics from the same place) (The Depthcharge/Rampage fics are amazing)
http://www.transfan-asylum.org/fanfic/randallfic.htm (Tremor3258's fic from the same place)
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And if you want, you can check out my stories. Just go the Search option on ff.net and put 'DeltaSilver' in the author field.
"Can you still see when your head has been severed from your neck? Let’s find out…"
- Drancron from Beast Wars Neo