I have an 87 560SL which has been parked for about 4 years.
I had to replace the fuel pumps, and then a lot of fiddling with the mixture screw to get in to run at all.
But, it runs very badly.
There is a very small window of adjustment where it will run at an idle, and it runs pretty well at that one sweet spot.
But if you try to speed the motor up even slightly, it goes SUPER RICH.
Also, the idle speed is high, so I suppose that system is messed up as well.
Any ideas?....
I had to replace the fuel pumps, and then a lot of fiddling with the mixture screw to get in to run at all.
But, it runs very badly.
There is a very small window of adjustment where it will run at an idle, and it runs pretty well at that one sweet spot.
But if you try to speed the motor up even slightly, it goes SUPER RICH.
Also, the idle speed is high, so I suppose that system is messed up as well.
Any ideas?....