ok, being that your meter will read duty cycle its simple. Set your meter to duty, put the postive lead into the #3 pin of the round connector on the l/h fender well. Ground the other to the engine. Start it and let it warm up, set the mixture to 40 to50%. Unless there are other problems your duty should not vary much more than 5% either way of set center.

Joe

__________________
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.
Raleigh NC
919-881-0364