another gs stalling...stumped...please send help!!

[da602krew]

I wasnt able to get a trailer untill day before yesterday, I took it back to the dealer yesterday. Right off the bat i knew it was going to be interesting, The manager had told me on the phone that he would pull someone off another bike "as soon as i got there" and have them check mine out or he would do it him self right then. I also got him to agree (because i dont trust them)that i could watch the process to ensure there was no shim-switcha-roo to try to cover their mistake. i Didnt want them tofind it, fix it, tell me it was fine, and charge me AGAIN! So anyways I called first he said bring it in, when I got there of course they were  "too busy" to pull someone off and what do you know all of a sudden he had a problem with me watching but i could wait if i wanted. So i did for about 2.5 hrs. before i had to leave to take my father to dialasis, as soon as i told him I'd be back someone rolled my bike to the back.(weird huh) He said he would give me a call i about an hour after he got the tank and valve cover off, I eventually got a call a little over three hours later. It was the manager he told me that he checked my valves personally and that everything was "In spec"  and that he was able to slide a .05 feeler gauge freely between the exhaust cam and shim. Even though I couldnt get a .04 or a .03 (i barrowed) between them or turn the buckets, Yea Right!!! So i told him "dont even put it back together im gonna come a take a look for my self that dosnt make any sense" So this morning i went to the dealer with my feeler gauges and trustly camcorder ive been documenting with, and sure enough my bike MAGICALLY fixed itself I personally checked it and they are "in spec". the manager assured me that they didnt adjust them because they didnt need it because his tech "did it right the first time" but because ive had so many problems with them he's decided not to charge me for ANY of their time and labor. Funny huh? suddenly he's a nice guy who dosnt want to charge me, or is it the fact he dosnt want to tell me im right and dosnt want to let me leave with it documented that they screwed up and had to redo it.(since ive already called suzuki) Anyways I picking it up on sat should know then if its fixed.

David-

[da602krew]

Hello,

It runs horrible now! I dont know what they did but it's BAD. It sounds like a "steam engine"  when it idles i hear psss psss psss psss coming from somewhere around the carbs? sounds like pressure not vaccum? Also, when i hold it at about 2-3k rpm it coughs air and hiss's backwards through the carbs, it almost seems like pressure surges out the intake and litterly causes the carbs to jump backwards (1/4 inch maybe) .I think they messed with the idle screw aswell because it starts right up cold with no choke  (dosnt sound right!) The GM and Service manager tried to tell me thats how i brought it in !!They some how think its running "very lean" even though i havent changed anything. They suggested that I PAY to have the fuel mixture screw cover removed and adjusted.why? never had a problem before, does the mix change over time? Then they told me " we've decided that since we cant ever meet your exspectations you should take you bike somewhere else in the future" How about that! I spoke with a mechanic freind of mine he said it sounds like they either bent a valve (on purpose?to try to say the problem was something else) or they used the wrong shims when the adjusted it, either way it sounds like im starting over. Im really concerned about that cough and carb jump/hiss.
Any suggestions???
Im going to try to tear it down tomarrow but im working the checker 500 and probly wont have much time. think ill start around 3am.

What do you think it can be?
Sorry for the novel, just trying to be thoro
David

[GeeP]

Hissing, popping, and farting sounds coming from the exhaust and carbs?  That sounds like VERY tight valves to me.

DON"T FOOL WITH THE MIXTURE!  Check the valves first to see if they're in spec, then go from there.  I suggest you buy a service manual if you don't already have one and do the work yourself. 

I'm sick of hearing stories like this.  What the hell happened to customer service?  I would never treat a customer with a problem like you and bluesky have been treated.  It just isn't good for business!

[The Buddha]

One part sounds like its sucking air in the manifold boots - AKA vacuum leak.
The shims being tight - yes its worth checking. Most shops dont know that the buckets fill with oil when you pull the shim out, and the next shim reads tight - usually till you start it up. However ... they tend to measure it, and go back to thinner and thinner till the shim in there is a lot thinner than ideal. That will be noisy, but not create much other problem. You have too thick - sounds like they made some other mistake. If its thick by a very small amount - 1 size or lesser only, it will be great after it gets hot, but startup and warm ups will be absolute misery. Past that, no idea, never run it that way.
Cool.
Srinath.

[da602krew]

Okay,

Im still scratching my head..... I pulled it apart again, checked the valve clearance and all are either .05 or .06 (in spec).  I also did a compression test (finger over plug hole) and they both seem fine, lots of pressure. I also did the light test, passed with flying colors. I did notice that one plug  had some carbon on it (looked normal) but the other one looked really clean, the white ceramic part looked spotless no carbon? They only have thirty miles on them but still, they dont look the same???  Kinda gave me the feeling that the clean one wasnt getting fuel. Any comment?The ones that just got replaced looked normal? With that said I have a question. On the back/top of my 06 gs500f petcock valve there is a vac line that goes about 10in to a tee, on the the opposite side of the tee there is another line , on the side nub there is NOTHING at all, no line, no cap, no breather, nada just a Naked open nub. Is this right? BEFORE YOU SAY IT Im going to order a manual next week (been down from stomach surgery). I dont remember ever seeing an open tee like that, Seems like there should be atleast somthing to keep the dust out. Sure would be nice if thats my Problem/vac leak easy fix too, but im still going recheck my carbs for clogs (even though i cleaned them just to be sure).

thanks for any help
David