My 84 4runner (carb) runs great most of the time. Periodically when climbing even short hills it will just suddenly start idling at 3,000 rpm. I can turn off the engine but when I restart it the engine it continues idling at 3,000 rpm. The only thing that seems to work is if I use the clutch to engage and disengage the engine/drivetrain several times then the idle will reset back to a normal 750 rpm. Tapping the gas does not help, the linkage and cable is clear, lubricated, not restricted and not sticking when this happens. I cleaned the carb with spray carb cleaner although it did not resolve the problem. I did not disassemble any part of the carb. Any suggestions??? Thanks in advance.
