wisa' my car a runnin after i'a turn it offa', dieseling? Options

[pete914]

so,
i'm running a carb on my engine and just recently i've noticed that after turning off the ignition it will turn over a time or two; kind of "rumble" to a stop.
i've also noticed that my idle is kind of high, but not always. sometimes it idles around 900...usually it's at 1200...and recently it's been getting "stuck" around 1500
could this have anything to do with the electric choke? i was told to depress the gas pedal once before starting it to activate it.
i checked the accelerator cable, no hang ups or anything.
here's a pic of the carb. i know it's a POS, but the car is running great, it's just the idle and the every-so-often cut off weirdness that's bothering me.
(IMG:http://i35.photobucket.com/albums/d189/pba110/914/IMG_1553.jpg)
nonetheless, i'm considering putting a d-tronic on my 1.8...i have the FI in my garage...but should i just wait and get the proper l-tronic system? that would be another $250 out of my pocket....worth it in the long run?
can't decide!!!! (IMG:style_emoticons/default/idea.gif)
thank you for your input gentleman
pete

[purple]

more than water or timing....your carb linkage is loose.

i have that same friggen carb and the linkage plates are on a big bushing. they are stacked up one behind the other, the rear most one controls the secondary carb throat. the front one is what connects to your throttle cable, in front of that is a small tabbed washer that rides against the shaft of the main carb butterfly.

This tabbed washer NEVER mates up without movement onto the nut that holds all the plates and shit on. You can't tighten the nut too much or else the linkage all binds and doesnt turn at all... you can try to get the tab to ubar elite mesh onto the nut, but it's a fruitless endeavor. just get a big ass throttle spring and save money for new carbs.

i tuned my idle to just around 850 or so when cold, so it sputters and runs like shit when it's cold, but it idles at aroun 1100 when hot. also, to solve your run-on problems, try running premium fuel.