Pablo's gs500 page
Installing Buell turn signals - Front
R1 taillight install on 89-00 gs500
Clear Taillight Lens for 01-03 Models
My Local Canyons
What's it worth?
Progressive fork spring install-the lazy way
Rear shock swap information
More rear shock info-SV650 install
Suspension tuning 101
Installing Suburban-Machinery SV650 handlebars
Install an SV650 headlight
Converting standard 1/4 throttle to 1/5 throttle
Installing LED's in stock taillight
Uber Fender Eliminator
R1 Taillight on 89-00 GS500
Speedo/Tach light replacement
Better handlebar grips
Installing Buell turn signals - Rear
Installing Buell turn signals - Front
Flush mount rear (stock) turn signals
Installing a 2001 Ducati Monster fairing
Fix a broken oil filter cap bolt
General battery info
A Wal-Mart sealed battery?
Chain Maintenance
Installing SV650 Chainguard
Spark plug information
Installing a GSXR front end
Installing a GSXR swingarm
Installing GSXR rear passenger peg brackets
Installing an OEM Bandit 400 rear hugger
Installing a Bandit 400 rear wheel
Installing a GSXR rear wheel-simple swap
Polishing your wheels
"The Mystical Art of Tire Reading" and other tire info
General tire info for the GS #1
General tire info for the GS #2
General tire info for the GS #3 - mixing brands/types
gsJack's opinion on tires for the GS
Gearing and sprockets
Slip-on mufflers
Slip-on exhaust : using stock SV650 muffler
Installing an R6 tail
Installing GSX-R600 stock rearsets
Installing CBR600 stock rearsets
Replacing stock front pegs with CBR pegs
Replacing stock front pegs with Katana pegs
Why re-jet a stock US bike
More on re-jetting your carbs
Jetting for 2001 models

Swap out your stock turn signals for smaller, shorter-stalk Buell OEM.

Compare stock turn signal on left to Buell signal on right

Why do this? Many people, including me, complain about the size of the stock turn signals, from how far they stick out to how big and bulky they are, both front and back. Most go the aftermarket route but these are usually much less bright than any stock turn signal. I opted to go to Buells because they have shorter stalk, are slightly less tall, and much less bulky than originals and are pretty cool looking with their smoke clear outer lens and amber inner lens. It's been noted that these are actually brighter than the stock GS turn signals by other GS riders. They are also very cheap-$7/each new at Harley-Davidson/Buell dealer and are usually in stock.  All Buells use the same turn signals; the part numbers are not model dependent.  You could adapt these instructions (making necessary adjustments) to any stock turn signal.  You could alternatively use the stock GS rear turn signals (you have ditched them already haven't you?). Also, you may want to disconnect battery to do this work, I chose not to.
I use the Buell rear signals for the front also because the front Buell's have a 1" longer stalk than the rears.
1. Start with bike on centerstand or sidestand, not important which as you won't be drilling for front signal mounting.  In order to make install as easy as possible I re-use the stock mounting location which simplified installation considerably.
2.  Remove headlight assembly by removing two phillips head screws located on lower part of headlight, at about 5 and 7 o'clock.  Unplug the headlight socket and set aside headlight remembering which side is up. You need to do this to access the wires.
3. Remove nut from back of existing turn signal. This is easier said than done. There isn't much room between the signal bracket and the headlight bucket. I had to find a very think open end wrench but managed to get it off quickly once I had.  Cut turn signal wires inside headlight bucket leaving about a 6" pigtail and pull signal out. You have to splice the new signals into the existing wires since the new signals only have  ~6" pigtail on them. They come with male bullet conectors so you'll have to buy some 16-14 size female bullet connectors and crimp to existing wires.
4. Slide new signal into existing mounting hole. Slide serrated washer and nut over wires, onto shaft and tighten everything down, making sure the signal is horizontal. Again, you need to find a very narrow wrench to tighten the nut. I took an old wrench and used a grinder to take material off in order to make it work.
5. Connect the Buell Black wire to the GS black/white wire (ground) and the Buell blue wire to the GS black wire.
6. Check signal operation.
Note: The bulbs that come with the Buell turn signals are different wattage (and smaller physically) than stock GS and will make the signal blink faster than before. I've been told this will not harm anything-leave them as is at your own risk. All it takes is a Tridon 552 lfasher relay, I believe. Available at any auto parts store. About $2-$3.
Another alternative is to replace bulb with one that matches the GS stock bulb but in amber. This will require you to remove the inner amber lens of Buell signal in order to fit the physically larger GS bulb.
7. Repeat other side.
8. Replace headlight.
The left and right part numbers for the rear Buell signals are different but the actual units are the same.
Left Rear Turn Signal-p/n Y0526.K  ($6.95)
Right Rear Turn Signal-p/n Y0527.K  ($6.95)
You'll also need the serrated washer, p/n B1000.4z and the thin nut, p/n d1000.4fz (you'll need one each per signal).
Some that have done the Buell turn signal swap have had a problem where the blinker turns on steady without blinking.  It was discovered that it had to do with not having enough draw across the flasher unit. By installing a new generic flasher, available from Wal-Mart for about $2, (It's just a round cylinder with two connectors, it's hidden behind the plastic anyway) solved the problem, or use the relay mentioned above.

The finished product

Special thanks to Pam G for inspiring me in an archived post