2007-11-27 09:20:32 · 4 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
when this happens the throttle control is all the way up because i was trying to start it, the throttle control does not even move but i can see the linkage on the carburetor moving. what is causing this and how can i stop it?
Thanks for any help
2007-11-27 09:50:48 · update #1
you can hear the mower throttling up and down fast, it keeps doing and it wont stop. whats wrong?
2007-11-28 01:18:18 · update #2
What you see moving is the governor. All your throttle is doing is pulling against the governor, and the balance is the engine speed. There is nothing wrong. This system has been in use for almost 100 years. The throttle wants to open the carburetor wide open, then governor wants to close the carb. So what you are seeing is the governor trying to find the balance.
Its what we call "Hunting and surging", and the common cause is that your carb is dirty and is not letting the proper amount of fuel in to keep the balance. The throttle forces the engine to rev up, the governor forces the throttle to back off, but with the restriction in the fuel delivery, the governors action is too drastic. So the engine revs back up, starting the cycle till it can find a balance.
2007-11-28 01:08:22 · answer #1 · answered by Todd B 5 · 0⤊ 1⤋
The linkage that you see moving is either the choke or the lever connected to the governor. When you move the throttle all you are doing is allowing the linkage to work to it's full stop points. When you go to the choke position, all the way up, the throttle lever engages a "wire" that closes the choke. Go to "outdoordistributors.com. and type in the engine model number. It will give you an exploded view of the carb and linkage.
2007-11-27 11:36:46 · answer #2 · answered by renpen 7 · 0⤊ 1⤋
Not sure about the specifics of that model but most of the throttles are held on with a screw or bolt and nut or rivet. If it is a few years old then it may be possible that the throttle pivot screw/bolt/rivet is worn and there is no friction to hold it in place. So you can tighten it, or if it is a rivet then drill it out and replace it with a nut and bolt or a new rivet if you have a rivet gun.
The other problem that is might be is that the throttle lever pivot is worn on the carburator. Check that for the same reasons.
2007-11-27 09:33:29 · answer #3 · answered by Wizard Of OS 4 · 0⤊ 1⤋
And your question is...... ?
2007-11-27 09:29:31 · answer #4 · answered by Anonymous · 0⤊ 1⤋