Cold Stumble

[53driver]

In which case you may want to revisit the answers in the morning.

Truer words never spoken....but here I am!

And...I'm off to bed.

[GaTeach]

Truer words never spoken....but here I am!

And...I'm off to bed.

I know we're in different time zones but I don’t think it’s morning yet. Have another!

[53driver]

I know we're in different time zones but I don’t think it’s morning yet. Have another!

Effing DAMN good idea!!!!!!
I'm on it!!!!!
In bed with adult beverage on the night stand....life is grand!

[unsub]

Effing DAMN good idea!!!!!!
I'm on it!!!!!
In bed with adult beverage on the night stand....life is grand!

Idea. If that does wonders for the soul, maybe a few drops in the tank is what the bike is looking for? This could be a breakthrough!

[53driver]

Idea. If that does wonders for the soul, maybe a few drops in the tank is what the bike is looking for? This could be a breakthrough!

Not sure about "wonders for the soul" or if it "makes the soul wonder."

But either way, maybe some "premium distillate from Kentucky" would make Isleen happier?!?!?
I'll try anything right now.....
Cheers,
Steve

[tenxxx]

The lower octane has a lower flash temp. Dip your finger in it and blow,, gone like alcohol.
!0% ethanol lowers it even more. It burns very fast and a hot spark plug tip can ignite it before the spark gets there.[spark nock]
High octane= slower burn.
High octane higher flash temp. Burns longer and through out the power stroke.
Slower burn = more consistent, efficient flame. The hotter the spark the better the burn.
With high octane gas you can open the spark plug gap to max setting, if yer gonna run it all the time.
But what effect it has on the stumble is a good?

Forgot to mention that higher octane also burns a bit cooler.

[Allen Framen]

So, after a quick catch-up read, it seems like we're down to: Maker's Mark helps with the stumble. Right?

allen

[2wheelsforme]

It might not cure it but it will help you not care!

[Pumper]

The cold stumble is definitely not a pinging or knocking issue.
It is a fuel to air ratio issue generated by the ECM when it gets input from the sensors that the fuel map then translates to a mix that is "not exactly correct" for the current conditions.
Is it the sensors providing false info?
Is it the ECM going wonky?
Is the fuel mapping artificially leaned out for EPA regulations?
Will non-ethanol make a difference given these variables?
If so, how?
Too many questions....time for a Makers Mark.
Cheers,
Steve

Steve, You have a valid point there: EPA regulations. cause mfgs. do all sorts of inventive ideas. Just ask VW how far they will go...

[GaTeach]

There was a guy on one of the F6B facebook pages talking about this. He mentioned the O2 sensors.