View Single Post
kent olsen kent olsen is offline
kent olsen's Avatar
Join Date: Apr 2006
Location: McMinnville, Oregon
Posts: 1,556
Tinkering with my webers, they love it when I get back there and give them some attention.

Trying to resolve the transition stumble I've had for years. Installed my AFR, leaned the idle jet from 55 to 50, replaced the emulsion tube from F1 to F3 and spent some time with the Idle mixtures to get them as close to 'best lean' as I could.

Got all the AFR's from idle to wide open between 11.5 and 13 but the stumble is still there now between 25-2800, little higher than with the F1 emulsion.

Today will check the distributor and ignition timing and since I have a switch to turn off one MSD, (twin plugs with dual MSD) will turn one off for a test run to see if that makes any difference.

And then wash my hands to get rid of the gas smell and any COVIS in my garage.
Kent Olsen
72 911 SCT
upgraded 3.0L
McMinnville, Ore
Old 11-10-2020, 09:55 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8981 (permalink)