Air fuel ratio Ljet Options

[Geezer914]

I am trying to adjust the air fuel ratio on me 2056 Ljet. I read the article that was posted a while back. I adjusted the wiper arm and set the idle at 1100 rpm (Raby 9550 cam) with the idle AFR at 13.2. When I check the high rpm the AFR is at 12.1. If I adjust the high rpm AFR to 13.2, (moving the large wheel 7 teeth CW) the the idle AFR is 16.9 with the mix screw all the way down. If I readjust the wiper arm to 13.2, then the high rpm AFR goes back to 12.2. Can't seem to find a happy medium. I know when you adjust the wiper arm it changes the mixture linear from idle to high rpm. How much more can I adjust the large wheel CW?

[914werke]

Thanks for chiming in Clay. @ClayPerrine
Ive never had the need to deep dive into L-Jet so Im still feeling my way.
Heads are plugged. Stock "non-adjustable" pressure regulator, the pressure referenced may not be as high as I noted as the gauge Im using isn't that granular. The gauge does respond as expected to throttle inputs.
Pretty confident I've eliminated all the air leaks, as I stated, I'm now at a point where Im feeding fuel via throttle to keep it running vs chasing a high idle.
New ...everything. Hoses seals, injectors you name it.
Still cant get it down to anywhere near the 800-1K idle necessary ... stumbles & dies.

[wonkipop]

Thanks for chiming in Clay. @ClayPerrine
Ive never had the need to deep dive into L-Jet so Im still feeling my way.
Heads are plugged. Stock "non-adjustable" pressure regulator, the pressure referenced may not be as high as I noted as the gauge Im using isn't that granular. The gauge does respond as expected to throttle inputs.
Pretty confident I've eliminated all the air leaks, as I stated, I'm now at a point where Im feeding fuel via throttle to keep it running vs chasing a high idle.
New ...everything. Hoses seals, injectors you name it.
Still cant get it down to anywhere near the 800-1K idle necessary ... stumbles & dies.

the way the pressure regulator works in an L jet is it drops the fuel pressure when you close the throttle from higher revs. thats when you get a high enough vac in the intake plenum to operate the pressure regulator. don't quote me on this but i think momentarily it will cause fuel pressure to drop to around 20-24 psi or something like that.
it lowers it. once the vac subsides the pressure goes back up to normal. at idle and all other times it just stays at around that 28-30 mark that mr. perrine indicates.

thats the only response you should see in relation to throttle.

there is always the question of flow as well as pressure. but i don't think you got any kind of fuel pressure problem by the sounds of it.