I just purchased a 1993 1500 with 17K miles. It sat for about four months. It does not want to idle. It fires up fine with the choke, but when you shut the choke off it dies. I installed new plugs. No change. I thought it may have bad gas so I drained the tank, put in fresh gas and added seafoam and rode it for 100 highway miles. I was hoping this would blow and clean the jets in the carbs. No joy. As soon as you let the revs fall below 1200 it dies. Starts right up again and you can keep it running if you keep reving it up. I am leaning towards a possible vacuum leak somewhere. Also, on a side note, for that 100 mile trip I burned a half a tank of gas. Does that seem excessive at 70mph for 100 miles? Also, does this burn 87 Ocatane or should I go higher?
Thank you for your input. DJ in NOLA
Thank you for your input. DJ in NOLA