How do you adjust idle on 1975 1.8L l-jetronic Options

[steveneashcraft]

Assuming that everything is right. Where is the idle adjustment on a 1975 Porsche 914 with a 1.8L engine with l-jetronic. Car is absolutely stock.

[Cap'n Krusty]

Assuming that everything is right. Where is the idle adjustment on a 1975 Porsche 914 with a 1.8L engine with l-jetronic. Car is absolutely stock.

The big fat screw on the throttle body. Before you touch it, do the dwell and timing per the established L-jet procedure. The Cap'n

[steveneashcraft]

Assuming that everything is right. Where is the idle adjustment on a 1975 Porsche 914 with a 1.8L engine with l-jetronic. Car is absolutely stock.

The big fat screw on the throttle body. Before you touch it, do the dwell and timing per the established L-jet procedure. The Cap'n

Thanks. That's what I thought but I pulled it completely out and there is nothing under it. I expected to find a needle valve and spring. Dwell and timing are correct (had to use a friend to hold a constant idle while checking). The big fat screw has very fine threads which is what I expect. When I look down into the hole when the screw is out there is what appears to be a rod across the bottom of the hole but nothing else. I just bought the car so it's possible that someone else was "fixing" the idle and left something out. Ideas?