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Toro 6.5 hp Mower Model 20487 Serial # 200001326 Initially, the mower would start and run for 3 seconds. I removed the carb and cleaned the bowl and jet holes in the bolt that holds bowl. The float appears to work freely. Upon reassembly, the mower runs at a very fast, unsafe speed. I can't reduce the speed, only shut it off. The cable that operates the linkage above the carb appears to work properly. Are there other adjustments?

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The linkage on the top of the carb should go to a spring loaded arm that goes into the side of the motor. Work the lever back and forth and see if it works the carb. If it does and everything is in place your governor mechanism inside the engine might be damaged.

If the arm isnt working the carb it is probably bound up or attached to the wrong hole in the carbs throttle lever. There should be two holes and one of them would force the throttle wide open everytime reguardless of what the governor arm tries to do.

Posted on Oct 11, 2010

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This is listed under Toro Mower with power tools that has a 6.5 Briggs and Stratton engine.



To clean the carb passages you will need to do the following.

(FUEL SELECTOR OFF)

1. The adjustment screw on the side of the carb that has a spring on it. You need to count the number of turns it takes turning it clockwise until it just comes up snug NOT TIGHT. Then remove it.

2, Remove the float bowl and dump the contents.

3. Spray carb cleaner in the adjustment screw hole.

4. Disconnect the fuel hose to the carb and spray carb cleaner in the brass tubing hole. The cleaner should be exiting via the float needle. Make sure float assy is down....

5. Connect the fuel line. (use a spray paint can lid and catch the fuel in this step. FUEL SELECTOR on. Catch fuel exiting carb. Lift the float to a LEVEL position and feul flow should stop. DO NOT FORCE IT! Gentle lift only.

FUEL Selector off.

6. Install float bowl

7. Re-install adjustment screw/needle/spring in the side of the carb. Turn it until it just snugs up.. then back it off the number of turns it took to initially close it before removal.

FUEL Selector on... wait 30 seconds..

7. Start mower.

That should do it.

Kelly

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My toro lawn mower will start with the primer button but quits after that gas runs out.


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