GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: ekim on March 15, 2004, 04:45:13 PM

Title: Couple of questions
Post by: ekim on March 15, 2004, 04:45:13 PM
I just picked up an 01 gs500 and I have a couple of questions. What changes were made to the jetting in 01? What is the better jetting for a stock bike? What if I was to add a k&n pod filter?

What do you guys feel the best "bang for the buck" would be on this bike? (jetting, exhaust, gearing...?)

Thanks for the help
Title: Couple of questions
Post by: GRU on March 15, 2004, 05:48:45 PM
welcome to the board

my bike is a '92 so i don't know much about the carbs on your bike...but check out this page

http://www.angelfire.com/mt2/mikesgs500/rejetting/Rejetting_Matrix.html

at the bottom and see what jets go with exhaust and filter...


basicly, just put in biger main and pilot jets, K&N filter and a slip-on exhaust can
then get a smaller front sprocket for better acceleration
Title: Couple of questions
Post by: ekim on March 15, 2004, 07:00:30 PM
How did you get the gsxr exhaust to fit? How does it sound/perform? You have any pics of the pipe installed?
Title: Couple of questions
Post by: GRU on March 15, 2004, 07:33:12 PM
i made a flange from a piece of metal...then had a pice of exhaust pipe bent the way i wanted it and put it over the GS stock pipe right before i the stock canister was welded..then welded the pipe i made to the piece of metal (flange i made)

i don't have any pics of the flange i made...it's simple...4 holes for the exhaust bolts and one big one for the exhaust flow
http://zepher.bikepics.com/pics/suzuki-gs500-92-bikepics-121136.jpg
http://zepher.bikepics.com/pics/suzuki-gs500-92-bikepics-117573.jpg

it sounds a whole lot better...i did this because it was cheap and i needed to get all that exhaust out because of the bigger jets and K&N pod filter, and because i love the way this exhaust can looks on a smaller bike

i'll get a sound clip tomarow so you can hear what is sounds like
Title: Couple of questions
Post by: Hi-T on March 15, 2004, 07:54:05 PM
Welcome to the board-

I ride an 01 and have completely upgraded everything- so feel free to send a shout out if you're looking to try something.

Jetting depends on what you plan to change-

Start with a 20 bleed type pilot (they are a pain to find - I had to bring them to a YAMAHA dealership to find the right one).
$14 from dealer

Exhaust system & Pod Filter
65 Mid Main (Small Round Slotted mikuni)
147 - 150 Main Jet (small round slotted mikuni)
Some say raise the needle but I say nay.
$20 from dealer

Exhaust system & Replacement Filter
62.5 Mid Main (Small Round Slotted mikuni)
142 Main Jet (small round slotted mikuni)
$20 from dealer

Stock Exhaust system & Replacement Filter
62.5 Mid Main (Small Round Slotted mikuni)
137 Main Jet (small round slotted mikuni)
$20 from dealer

Or You could drop $85 in to a factorypro kit or dynojetkit for the same thing.

I'd also do a search on timing advancers.  By the way- I have a K&n replacement filter plus the pilots and jets you'll need to rejet - all for $50 shipped- check the For Sale Forum.