So i just put in the stage 3 jet kit on my 89, and now it barely starts and doesn't for long when it does.

-Chopped exhaust
-pod filters
-advanced timing
-stage 3 jet kit

So what do i need to do, i have messed wit the mixture screws a bit to no avail...

What steps should i take to figure out whats wrong...  Like the times its actually startd it seemed to be ok after 4,000 rpms, but wouldn't idle and died really easy.  I followed the jet kit instructions perfectly... so im lost.
ANY HELP WOULD BE AWSOME...

I have rejetted mine with stage 1 kit for 2004 bike so I don't have experience with stage 3, but you said you messed up with mixture screws... try to turn them all the way in and then turn them out 3 turns or whatever instruction say.
one more thing - rejetting with DJ kit usually gives a hard time. don't ask how I figured that out...

How long since your last valve adjustments ?

Well, i tried messin with the mixtures screws both directions and it didn't seem to help at all....

And i have never done a valve adjustment... So.... hahaha.

So still no luck gettin it to run right... I have done everything under the sun i can think of.

I even called dynojet on the phone twice askin for things to check/try....

Things i've tried:
-puttin in the stock needles...
-adjusting the float height
-adjusting the aftermarket clip location (2 down to 1)
-mixture screws (clockwise and counterclockwise)
-KICKED IT A FEW TIMES

Im lost, right now it is:
-aftermarket needles (clip on 1st groove)
-stage 3 jet
-carbs adjusted the best i could get em

It will idle perfect all day... but as soon as i touch the gas it dies imediately.  If i twist the throttle fast it kinda revs up and when i can get it to rev into the higher rpm's its fine, but in the low rpms its terrible...

ANYONE

Check your tank petcock
check the fuel lines
check your Vac lines
That will be a start

Maybe try getting all that shaZam! off your bike? 

Yikes!  You "dieseled your bike." 

Sorry I'm not much help for this specific problem.  Does it make a difference to have the choke on full?  Sounds related to exhaust back-pressure.  Just try adjusting one thing at a time and if it has no affect, change it back and try something else so you can eleminate causes...like make small adjustments to the mixture screws to see what makes it better or worse, etc.

Good luck!  I can't sleep when I have problems like these that defy logic.

BH

Yeah, i forgot to clearify that i checked alll the lines multiple times...

i used the manual and checked all the fuel lines, vac lines, and everything else.  I also checked the carb float distance as best i could.   So i mean as far as the actual phsyical attaching and put together of everything its good. Its somthing i dont know of...

And BASSHZ i think you mighta sprung on somthing i wasent thinkin about and thats the backpressure in the exhaust. Cause my exhaust it deff super duper hi-flow... basically i just took the stock exhaust off, cut open the muffler, hollowed it and welded it all back together.... soooo it deff could be the bike just doesn't have enough back pressure.... ?

It will start no matter how much back pressure you have.

So the question is how did it run before the rejet?

Did you remove the pilot jets and ensure that they are not clogged?

How does choke effect it?

Do the slides move up and down freely?

Is there water in the gas possibly from it sitting outside(I had that problem)

Oh, gottcha, well, befor the re-jet kit it ran just fine, minus the fact that it felt like it didn't have enough power, AKA the reason i got the jet kit.

I havent checked the pilot jets, but i would imagine they are fine since it idles perfect all day long....

the choke from the one time i used it seemed to smoth out the idle a little, but i didn't ride it with the chock to tell u much more then that.

Both slides have always moved totally freely everytime i check them, which is everytime i start it (while im workin on it)

I suppose there could possibly be water in the gas because it does sit outside, but i just put like 3 gallons of 91 in it earlier today... so i would hope its not that... the tank was pretty empty befor i filled it so it should be pretty fresh gas....

Also the spark plugs are about 2 days old, i replaced them last time i worked on it in case they were fouled out.... (not sure how fast it could foul em out agian if its runnin badly, maybe i should get a pack of them to keep replacing them as neccesary)

The exhaust seems to be the top choice for the possible culprit.  Besides replacing the can, I'm not sure what you can do about it.

Well, yeah thats what i was thinkin.... i suppose i can savage some of the stock baffles from the inside and rechop it open and put in a baffle to add just a bit of back pressure, the only thing is, is that i want it to be high flow and not constrictive, but still have enough back pressure, so that ballance seems like it would be hard to figure out...

I would suggest removing the 91 octane gas and put in some 87. The GS does not have enough spark to properly burn 91 and It can make your bike run like shaZam!. that may or maynot be your problem, when I put in 89 my bike ran like sjit and would bogg down I removed the gas and put back in 87 and it ran fine.

The exhuast is not the issue, I can guarantee  that.

The pilot jet is not used to meter for idle, that is what the mixture screws take care of. THe pilot jet handles low rpm, low loading conditions.

Is the bike running only on one cylinder possibly? When its idleing pull the left spark plug cap off, if it dies then you are running only one cylinder. If it keeps running with no change in engine speed then you found your dead cylinder. Do the same for the right cylinder.

What do the plugs look like? You said they are consistently "failing" out, are they getting carbon fouled?

Firstly i would like to start out by say i love this forum, man everyone on here is so freekin helpful, i never get so much help on other forums. so props to everyone for that....  onto the issues. LOL

ok, well im glad that the exhaust isn't the issue (and even more glad i didn't try to fix the exhaust today LOL)

well i tried to film the bike doing what its doing but now my video software isn't workin so i cant upload it.... ghey... so im just gonna keep tryin to explain it and try things everyone suggests...

I just went out and check the spark plug thing, i turned it on let the idle stabalize and pulled off the left side then the right, both sides did the same thing, and that is the big kept running, the rpm's did drop a lil, but it kept running, and i managed to SHOCK THE CRAP outta myself multiple times... hahaha....

When i take the plugs out (since the jetkit) they come out coated in black AKA carbon fouled as you said i believe is what they are, basically just covered in black soot, so everytime i take them out i clean em off with carb cleaner spray as best i can since i dont have any more new ones....

and as far as i know, the pilot jets are clear, but i cant be certian, next time i go to mess with it, im gonna try changing it back to 85 instead of 91..... Good advice... makes sense...

No problem that is why we are on this board. Good luck
Just keep in mind the GS aint no high performance sport bike it has low compression and low output so running high octane fuel needs more spark to burn it properly, get the cheapest gas you can find and the GS will be one happy putter.

If a plug gets fouled you don't neccesarily need to go out and buy new plugs. Just buy a brass wire brush and brush all the carbon off and you will be good to go again, even better if you  can spray on some carb cleaner too.

I have run 91 in the GS with no problem, but I suppose it could be effecting something.  Did you change the pilot jets when you rejetted?  If you put the bleeder type pilot jets in, it could be running really rich at idle.  Did you already tell us what size jets you are using?  Also, did you balance the carbs after rejetting?  It seems unlikely that not balancing would cause it to run this badly, but it's something to check.

OK, just got back in from a couple hours of dickin around with the bike to no avail.....

-I took the plugs out and cleaned the crap outta them (twice during the night)
-adjusted the mixture screws again
-drained the gas tank completly and put in 2.5 gall of 87 (we dont have 85 around were i am..)
-adjusted the throttle cable...

NOTHING....  it still barely idles and runs like shaZam!, and i couldn't even get it to rev at all like i could befor...

So i took the carbs off (for prolly the 14 time doing this jet kit) and brought it up to my apt, im about to tear it apart, check the idle jets and make sure there clear and clean, im going to remeasure and check and adjust the float level, and just see if anything looks wrong somehow....

Thats about all i got for now....