Ciao! This is my first forum post, but I've been reading and using all of your advice for years! My 1983 Spider Veloce is having really rough idle. Here's the condition: crank and start to ~1300rpm, then idle dips in about 7 seconds to 500rpm (barely running) for 10 seconds, then back up, and...

on the dhla cold start circuit, when the lever is moved toward the front of the engine/radiator is it enriching the mixture? i have read that to start the idle mixture screw is turned 2 &1/2 turns out. the carb is marked dhla. a good place to start? thanks bill 91 164L 88 Milano 3.0 73 spider...