Idle changes when bike is hot

[ehkmcveh]

Forgot the photo

 

[Guest]

Nice, I will have to give that a read.
My main circuit shows the metal tip white on cylinder 2 and 3, so I'm pretty certain that it needs a 105 (102.5 currently)
Don't want to cause any damage after all this work lol . Sure rips though!

I went and tracked the thread down, it was in the Performance/Mods/Tuning forum: http://www.thegsresources.com/_forum/showthread.php?248573-Plug-chop-any-suggestions&highlight=

View attachment 52769Forgot the photo

I would say that still is pretty rich, but I agree that you don't want to burn something up running on the lean side of things. My 1100E plugs are much less dark than that, running on premium pump fuel with no ethanol.


Mark

 

[ehkmcveh]

I would say that still is pretty rich, but I agree that you don't want to burn something up running on the lean side of things. My 1100E plugs are much less dark than that, running on premium pump fuel with no ethanol.


Mark

Ah took a read through it. interesting. Yeah I didn't test my Main first. I went pilot/needle/main
Is it possible that all that black is from my pilot test?...That it didn't get quite burned up during the needle/main to get the true colour. I guess the best way would be with new plugs.

That tip looks pretty white! but according to GregT in that post I am only looking at the outer ring?
The tip in the GregT post was a more of a Tan colour.

I try and run Petro Canada 91, I think that has Ethanol in it? I know the 94 is 100% gas. I guess i should be testing with that. I see you are from alberta so you could confirm
Right now for this test though I have Shell 91 in it right now.

I almost should start a new thread for this

 

[Guest]

That tip looks pretty white! but according to GregT in that post I am only looking at the outer ring?
The tip in the GregT post was a more of a Tan colour.

Yeah, those plugs looked scary to me but GregT seemed unconcerned and he has looked at many, many sets that were tuned with instrumentation on a dyno. That's why I said if you have a bit of tan on the insulator and the dark ring you aren't too terrible with modern fuels.

I try and run Petro Canada 91, I think that has Ethanol in it? I know the 94 is 100% gas. I guess i should be testing with that. I see you are from alberta so you could confirm
Right now for this test though I have Shell 91 in it right now.

I am in Didsbury. Each station has its own formulation for fuel so you have to check and see what they say it has. I think most premium (91 octane) is ethanol free here, but you have to read the fine print for each brand. Anything less than premium will be 10-15% (I think it is) ethanol.


Mark

 

[bobgroger]

Your bike should never idle at 1100rpm when cold just off the choke. My 1100E idles at about 800-850rpm when dead cold, 1100rpm when warmed up. Try turning your idle down to 1100rpm when warm, then see what happens when cold. I do agree with others that your pilot circuits sound lean, but get your warm idle down to 1100rpm first and work from there.




Your pilot circuit is lean.


Mark

/\ That. Adjust for best operation hot. A good running GS will need the choke on for a few blocks, at least with CV carbs.