Hey everybody! I have a 1973 Ariens 910018 with a tecumseh HM100-159170R. I bought it recently and here's what I've done so far. I have completely rebuilt the carb and installed new fuel lines and a primer. My problem is that i got the governor adjusted so that it had a high idle of 3600 rpm, and the mixtures set right, and it runs great with no load. But once i start into even 6 inches of snow, the engine won't maintain rpm. I know that it isn't an issue of lack of power, because if i manually aid the governor spring, it has tons of power. Also, when i screwed the adjustment screw on the throttle lever assembly in more to compensate, then at at the full rpm the throttle lever was slowly being pushed back by the governor. Should i be replacing the throttle lever assembly with the spring? Maybe the spring is weak and the lever assembly is worn out? Some advice would be appreciated. I'll post a picture of the type of throttle control it has.
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