float height

[BigLakeBob]

Thanks for sharing your knowledge Cotten.

[Omarttentmaker]

Without a tach, we are only guessing, Omar!

But the advanced idle speed must be high enough to smooth out the motor pulse: "Potato-potato" might be sexy, but the motor doesn't like it.

The theory I have read about the late HS needle is that the fixed jet meters the majority of fuel, and the needle is used to trim down any excess at high altitudes, etc. (Hence it was dubbed the "Denver jet".) Here in the Midwest, the arbitrary three-quarters-turn worked well in that it didn't cause problems, when everything else was in order.

When road-tuning any Linkert or DLX Schebler, we must keep in mind that a rich idle needle setting leans the highspeed circuit, so if you are lucky enough to have a highspeed that responds, you will want to bounce back and forth between tuning the two, coaxing them to their sweet spots for your fuel and other variables.

...Cotten

Otay, 'Panky!...Gonna take it out to a stretch of road that runs parallel to the Genesee River...Nice and straight and flat for 2 or 3 miles. Will pay attention to the sound and the overall feel......Cheers.....Omar

[T. Cotten]

Just because I'm often confusing, Omar,..

On that open stretch, please cruise at a constant speed when tickling the highspeed, and do it slowly, as the carb 'circuits' may take several seconds to equilibrate. Once you think you have found an optimum (if it has any effect at all), then pull over and tickle the lowspeed to its optimum.

And repeat of course!

....Cotten