I am new to this forum but not to Jeeps. I have been messing around with JEEP carbs. for longer than I remember. Finally, have found the fix(s). Step 1, remove original carb. (KEEP Stock Air Cleaner and TAC) Step 2. Borrow a friends vehicle , and drive to your favorite bridge.
Step 3.Grin. Step 4. Drop the carb. over the the edge of the guard rail. Step 5. Grin again. Step 6. Drive home, while laughing all the Way. Step 6. Buy a Weber 38 DGES , From Carbs. Unlimited, also order the STOCK AIR CLEANER ADAPTER for the Weber.Install Weber, connect (TAC)this is the stock sensor that controls the heat stove duct valve in the air cleaner, connect to manifold vacuum. Step 7. Start motor, just pump gas once, Smile again.
If you already have a Weber, buy the stock air cleaner adapter and see the difference. If you are having trouble with your Weber, send it to these guys. They strip it, boil it, re-bush it,adjust it for choke operation and warm running conditions, tweak it and run it on a test engine for $145.00 plus shipping! And their turnaround time was 24 hrs.! The air cleaner adapter will run an extra $50.00 . Beleive me it is worth it. Yesterday morning it was -20 Degrees F and my Wrangler started 1st try and ran like new. It seems that regarless of temperature these carbs. are really prone to "Carb. Icing". After years of messing with the carb. almost daily , It now starts, runs smooth and continues to run even in the coldest of weather. I was literally on the verge of selling the Jeep because of the carb. issues. Try it and end your troubles! I am not affilliated with these guys in any way, the differences that I am experienceing are just so substantial it's difficult to contain my enthusiasm.