the big d

Well the yota was running fine until today with sputtering under load above 40mph, it wouldn't take any gas. I pulled one of the plugs and it is dark so I know they need to be replaced. But since the truck sat for over 2 years would the carb likely need cleaning if it ran fine for 300 miles this week? I'm used to the fuel injected world.

the_supernerd

Sputtering under load could be caused by bad plugs and wires. I would give it a full tune up before anything else, especially if the plugs are old.

It could be something in the carb, but I would start with the basic tune-up. Properly gapped plugs, wires, cap, and rotor. New fuel and air filters, a valve adjustment and ignition timing check would also be a good idea. It would not hurt to clean out the throat of the carb with some carb cleaner at the same time, but I would wait to rebuild it.

the big d

Plugs and a shot of carb cleaner did the trick, still need to do the rest of the tuneup but it is now at least driveable and its smooth and enough power. I keep thinking that plugs last 100k on the thing instead of 20k.