How to move the throttle stopscrew?

[Guest]

I have a 1980 Gs550LT.

I recently cleaned the carburetors according to the guides found on this sight. I replaced all the orings, and intake boots.

These last 2 days I put the bike together and proceeded totry to start it. Was not getting spark on 2 and 3 cylinder. Apparently it was a bad connection because after disconnecting connectors for testing, I had spark.

A spray of starting fluid got it running but the idle was high. I turned the main throttle stop knob counter clockwise and the bike was redlining. I tried to use a 15 mm 12 point ratcheting wrench to turn the knob since I could not move it by hand.

The trouble is I am not sure I am moving the know is there some trick or special tool to use?

[chuck hahn]

Well first off you turn the bog knob counter clockwise ( Lefty Lower..Righty Revving ) to lower the idle....which you did without results so that leads me to point two. Secondly you need just a ever so slight amount of cable slack so the idle will in fact go low enough before the cable prevents it.

[Steve]

There is no trick.

It should have been tested during the bench sync, right after the "rebuild".

.





.

[Guest]

so it should move by hand?

I will have to check cable slack the next time I work on it.

thanks.

[chuck hahn]

Yes..as you turn the knob, the spring will retract the throttle linkage and lower the RPMs...if you have hooked up the spring anyway.

Get some good cable slack from the adjustments on the cable where it hooks to the cable holder on the carbs and there should also be a turn buckle arrangement up at the throttle grip as well for even more slack if need be.

[Guest]

I have never messed with the carbs and was not sure the purpose of the knob.

Wished I had checked it before putting them back on. Oh well, practice makes perfect or so they say.

[cowboyup3371]

I have a 1980 Gs550LT.

I recently cleaned the carburetors according to the guides found on this sight. I replaced all the orings, and intake boots.

These last 2 days I put the bike together and proceeded totry to start it. Was not getting spark on 2 and 3 cylinder. Apparently it was a bad connection because after disconnecting connectors for testing, I had spark.

A spray of starting fluid got it running but the idle was high. I turned the main throttle stop knob counter clockwise and the bike was redlining. I tried to use a 15 mm 12 point ratcheting wrench to turn the knob since I could not move it by hand.

The trouble is I am not sure I am moving the know is there some trick or special tool to use?

I have never messed with the carbs and was not sure the purpose of the knob.

Wished I had checked it before putting them back on. Oh well, practice makes perfect or so they say.

Did you clean the carbs you said in your first post or have you never messed with them?

[Guest]

I forget the need to be clear in these matters. I had never messed with the carbs until I recently cleaned and put them back in bike.

[tkent02]

I recently cleaned the carburetors according to the guides found on this sight. I replaced all the orings, and intake boots.

Which is it?

I have never messed with the carbs and was not sure the purpose of the knob.

[Guest]

Confused?

I recently followed the guide on this site to clean my carbs. Up until that time, I had not messed with the carbs.

Does that clear it up?

[barnbiketom]

spray Blaster on the threads of the knob, then wait an hour. spray more. the knob should turn EASY

[JTGS850GL]

Did you bench sycn the carbs before you mounted them?

[Steve]

Did you bench sycn the carbs before you mounted them?

Evidently not.

See post #3.

.

[Guest]

I thought I had bench synched them. I set a paperclip under the butterfly valve of each carb and adjusted the individual screw so the valve just rested on the paperclip

[JTGS850GL]

I thought I had bench synched them. I set a paperclip under the butterfly valve of each carb and adjusted the individual screw so the valve just rested on the paperclip

How did you adjust the #3 carb?