what is your best trick to find a vacuum leak, hunting idle Options

[freezing14]

finally got around to start tuning the (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) d-jet, it's acutally run not bad, not too rich, not too lean, good power good response, but the idle hunts a bit,, I know it means that I have a vacuum leak a small one, most of not all the hoses are new only the runner rubber are old but in a good condition, what is the best way to find where is the leak, I have heard of propane??? starter fluid???? pressurising the intake and using a soap solution,,

[mihai914]

As mattilac said, carb cleaner is very popular on 914s, I would just add that if you repainted any part on the injection, the carb cleaner will eat through the paint. Other possibilities are a vacuum pump like a Mityvac, I think you'll probably end up with a combination of all the possible methods in order to sort things up. Best of luck!