i can find 93. i guess a bp will work. i believe its almost road ready.

All franchise owned stations must sell fuel blended with ethanol. However, independent owned stations have the option to blend or use 100 % fuel with no ethanol

They sell cheap ethanol test kits all over the net and there are home brew kits you can use also with Mason jars and water.

I think we are a little off track here.  The type of gas he uses shouldn't really effect his idle speed.  The bike is designed for 87.

High idle can be caused by lots of things.

1. Idle screw adjustment
2. Mixture screw adjustment
3. Air leaks
4. Throttle cable adjustment
5. Choke cable stuck on
6. Other carburetor issues, like clogged passages
7. Any combination of the above

When I first got my 09 found a pin hole in a diaphragm  $20 later problem solved:

http://www.siriusconinc.com/pro-detail.php?pid=&product_id=3039.

okay well one of my symptoms is that it idled very high when holding down the clutch, while in gear it sounds fine. now though, its beginning to act more and more right, but its just a tad bit bit off, I believe that the octane i have is too combustible for a 12krpm bike, or 11k.   so switching to 93, with an octane booster would be the fix?

A good dose of Seafom may help, it's works wonders for me.

just in the gas can?

Its still revving high when you hold down the clutch. Im trying to source now. all slight transmission slippage in high gear and full throttle. must take lightly. do you still think theres something wrong with the carbs?

See my previous post about what the high revs are likely from.  Also adjust your clutch.  Plenty of threads about both your problems here.

Quote from: Ryanstalin on October 06, 2012, 02:14:45 PMso switching to 93, with an octane booster would be the fix?

Try a tank of 93oct, but skip the octane booster. They really dont do anything. Have you tried turning the idle adjustment screw to lower the idle?

its full of 93 octane, the clutch is tight, but cuts like butter, since theres a new line on there. i did lower the idle screw all the way down and the throttle had sag. but still revved high. my only guess would be that the float needles have gotten stuck. I will easily solve that tomorrow tho.

btw I would take pictures, but my phone got stolen, and im still in the process of replacing it. so bare with me, I still have a ton of cool photos of the bike. my friends buell is running as well. my friend is riding it without a seat.

well since the lack of the responds, im guessing im all alone on this one, i did check out my clutch basket, which looks to be in good shape. the throttle response is super guick compared to a stock gs500f, i took notice to alot of youtube videos on how the bike "should" run. mine does have a slight chatter, that I havent located the position other then "under" me.

I can tell you ever time I had a fuel issue or idle issue it was carb related somehow. Either the passages were not clean or it was not adjusted correctly. You seen how it responded better after I synced the carbs. And that was AFTER I already had clean the bowls, rejetted, drilled out the brass caps and was out 2.5 turns on the air screws.

Here is another small fuel issue I had I just resolved.

http://gstwins.com/gsboard/index.php?topic=62133

Quote from: Ryanstalin on October 10, 2012, 07:33:01 PM
well since the lack of the responds, im guessing im all alone on this one, i did check out my clutch basket, which looks to be in good shape. the throttle response is super guick compared to a stock gs500f, i took notice to alot of youtube videos on how the bike "should" run. mine does have a slight chatter, that I havent located the position other then "under" me.

Maybe the lack of response is that this thread has gone through many different topics. Not sure what the current state is or what to respond to.

Maybe summarize your current problems in a new thread?

I find it hard to read through all the posts to determine what your current question/problem really is.

Well I fixed the front brakes. And the back rotor has bumps in it. I'm planning to get a new rotor. And I have a new rear brake line coming since the current one is.leaking. its revving extremely high. And I bought.some carb cleaner. And spray it in the box. It revved higher when doing that. I put new spark plugs in it as well and sounds very good. When pulling the carb back makes it rev higher too

Sent from my EVO using Tapatalk 2

Your problem may have nothing at all to do with routing of fuel lines.  Normally, the vacuum will open the diaphragm to allow either main or reserve fuel into the float bowl during start and run.  If you turn the frame-mounted petcock to "PRIME", you will be gravity-dumping fuel into the carbs, running or not.  It happens even faster when the motor is running; the airbox will begin to fill with fuel, cause extremely rich mixture which will foul the plugs.  As the engine sputters and bogs, the excess fuel will blow by the rings, diluting the motor oil.  DOOFUS ALERT!!  I just got back from a 3 hour session in the garage.  HOW TO FIX - Find the piss-tube which is connected to the bottom of the airbox. My '89 GS500e has a little flapper dohickey at the bottom of the tube.  Cut the cable ties, let the fuel drain out. Pull the air filter, which is probably sopping wet with gas.  Hook a vacuum cleaner up and draw air through it for 20 minutes to evaporate the gasoline. Drain the oil which is probably 1/2 gas and 1/2 oil.  Do a complete oil change + filter. Re-cable tie the piss tube end, so airbox doesn't suck air from the tube. Learn from my MISTAKE - set the frame petcock to ON or RESERVE.  Hope this helps - let me know how it turns out for you..........

My fuel is set to on already. And its not flooding. It is running a little rich sometimes I have backfire put the tailpipe. After I turned the motor off. There's no gas in the airbox, or oil.

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Quote from: spf on October 11, 2012, 07:09:01 PMIf you turn the frame-mounted petcock to "PRIME", you will be gravity-dumping fuel into the carbs, running or not.  It happens even faster when the motor is running; the airbox will begin to fill with fuel, cause extremely rich mixture which will foul the plugs.  As the engine sputters and bogs, the excess fuel will blow by the rings, diluting the motor oil.

If the floats are set right and the float needles are working properly, this will not happen, even on prime.