Southernmost

Hey, just an update. I have cleaned the carb like three or four times so the carbs virtually spotless. I replaced the plug and still the mule 550 runs bad. It idles with a little studder, when I press the gas it dies like the choke is pulled. But if I go from idle to WOT it runs fine. I just can't run wide open all the time. Someone suggested the throttle linkage was off but I haven't messed with it. Any help? Once again it has new fuel pump, gas tank washed out, new fuel and vacuum lines, new plug.

Similar problem. But story is, mule 550( early model), vacuum driven pump. Was set up for about 2 yrs and gas tank rusted, carb rotted. I replaced the bowl gasket, cleaned the carb, replaced all fuel and vaccum lines. Mule cranks, runs smoothe for about 3 sec then sputters and dies. Will not run at half throttle, only wide open and idle after 30 sec. I have replaced the vaccum line, cleaned and gapped the plug, recleaned the carb, and still doing it. Any new suggestions?