Lets talk Emulsion tubes

[priobe]

Caprimaniac,

If you are running good on your idle to 3000 I would not change the emulsion tube.

What I would change depending on where you are experiencing the 12.5 A/F.

If it is higher RPM like 4000 then I would lower the air corrector.

What is mains and aircorrector jets?

At what RPM is you A/F mixture experiencing 12.5

[Caprimaniac]

Hi, Priobe/ all.

The 11-12 AF was above 4000.
In the 10's from 2000 when flooring the pedal.

Engine is running fine (but a litle rich) up to 3000.

40 chokes, 165 mains 200 (190) air corr.

Tried 140 mains today: A/F 16 at 5000 rpm.

Changing back to 165 mains, getting larger air corr. later on.
220?
Think moving up more will make A/F too low, since changing 165- 140 made such a difference.

Have to go'n change the mains. Track- day on sunday, mother in law's 50'th anniversary tomorrow....

[priobe]

145 to 165 is a huge change.

I would change to 160