Needle Jet Question

[Czakky]

Stator replaced. Starts easy now, the 5-6k stumble is gone! Like I'm pretty confident I finally got it now! I not got in a little 20mile test ride but it did not do its stupid stumble before the powerband as hard as I could try. I did have to go up on the mains because it seemed to cut out at wide open a tiny bit with the 240s.
I'm still not able to get a decent idle. It's either flat just off closed throttle at 2 turns out or it's unable to idle at 1.5 turns. Could I have simply worn out the part where the slide touches the adjuster?

Either way it's so good to have the old girl back and running.

[automan]

My flow bench data-test post, more to come
cliff

Jet needle clip position influence on vm34

[teazer]

That's an interesting chart, but a little hard for me to read the details to work out exactly what we are looking at. 

New eyes might fix that but in the meantime are the two lines top and bottom clip positions with all other variables held constant?

And is the chart a measure of flow through the needle jet or total fuel flow into the carb or something else?

[automan]

Tease, total flow of fuel (via air) on the main.

Clip positions are the only viable.

Mind you, this is an analogy of the real liquid fuel.

Just to see effect of circuits at various mass air/throttle positions.


cliff

[edgefinder]

Are these calculated or measured fuel flow? Cool stuff

[automan]

Measured with mass air flow meter

c