How to adjust Duty Cycle at 2.500 RPM - 300 CE 91?
 

I've no problem adjusting my duty cycle at idle following the procedure linked here on this site, but my duty cycle at 2.500 rpm is way off (20 to 30 %).

How to adjust it? I remember earing something playing with the adjusting screw located on the EHA valve?

Can someone detail me the process (direction of adjustment) to adjust it.

Thanks.

Yes, after 2500 your A/F ratio can only be set via the EHA. Remove the EHA, remove the flat head screw and turn the 2.5mm hex 1-1/2 flat @ a time.

I'd strongly recommend you have another O2 bung installed and use a 5 wire O2 and A/F meter to set your #'s.

Jonathan

Thanks for the info.

What's the direction of adjustment of this screw: CW do what to duty cycle at 2.500 rpm?

O2, EHA, injectors, ign coil/wires/plugs have just been changed (all of this were bad).

Sorry..forgot that critical bit...:-P Clockwise (right) for rich, counter (left) for lean..

Jonathan