BenzWorld Junior Member
Date registered: Oct 2013
Vehicle: 1969 250C
Location: Ankara, Turkey
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
FOllow up on Zenith Carb rebuild problems
Well, I worked on these "babies" more last night. I think I have the idle problem solved!
And ctaylor (see post above) was right. throttle plate.
I had made a stupid mistake. I tried to set the idle and sync the two carbs with the link between them connected. This will NOT WORK! Don't know what I was thinking.
Once I disconnected and went back to set the idle, it was clear the rear carb idle was set too high. The "dribbling gas" was the result of too much vacuum. When I set the idle, problem went away.
I set the idle and set the mixture on each carb (see next post), THEN adjusted the link and reinstalled. Now they work pretty good. Only problem left is a choke plate on front carb that sticks open after engine cools down (feels like something is rubbing on the rod).