Rich fuel system

[Ken Cox]

My 69 280 sl has a problem with fowling the plugs when at the idle position,as well as it does run rich. The fuel system was rebuilt from tank to injectors ( pump by Hans ).

Can anyone help.

I have tried adjusting the Pump slightly etc.

Ken Cox

[psmith]

It's a very common problem with our cars.  Most of the information has been collected in the Technical Manuel (Thanks Peter!) Here's a link http://www.sl113.org/wiki/pmwiki.php?n=Fuel.Start In my case, it was the linkage.  Unlike modern cars, the linkage adjustment is very important in the smooth running of these cars.  There is a very thorough description of linkage adjustment in the Maintenance section on that page.

Pete S.