Toro Model 20462

I’m sorry but I don’t understand what you need, can you explain it better. Also, can I take a couple of pics of the carb and control springs. I’m thinking I may know what the problem may be, but I’m not one for guessing.
 
When playing with RPM's, you need a tachometer. Some of those Toros have a carb spring you can gently stretch for more revs.

Put a picture up showing the carb and linkage. More pictures the better.

slomo
 
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