Question about Toro Lawn Mower With Toro Power Tools

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Toro rider 16-38 HXL when I start it revs at FULL speed and sounds like it will blow up. I slow it down with choke all other linkage seems to be in place properly- Is there a trick to fixing?

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Three options:

1. The carburetor throttle plate (closest to the engine is stuck); clean it with gumout and work it back and forth

2. the linkage is hooked in the wrong hole ; check the wear pattern on the throttle shaft plate to see if it is in the wrong hole.

3. The govenor arm or gear is not adjusted properly; loosten the govenor arm, push the throttle plate of the carburetor all the way closed. push the govenor arm the same direction all the way until it bottoms out. tighten the arm clamp. Test again

I recommend getting a manual or at least a free parts diagram from a local shop like www.arcolawn.com

Good luck
Joe

please vote me up if the fix was good.

Posted on Feb 12, 2011

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I have a Toro HXL 16-44. Starts but then shuts right off after initial try, then will not start up again at all. Just turns over, never starts up.


Your fuel needle is not closing , allowing too much fuel... there needs to be a proper fuel air ratio. Have you recently had the unit serviced? Someone mess with the carburetor itself?

The float needs to be adjusted so it closes the needle sooner

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I can start my Toro 14-38 HXL riding mower but it will only run for about 30 seconds I have changed the fuel filter any other suggestions?


will it run longer on 3/4 choke?

Sounds like you need to clean the Carburetor Jet.
Has the mower been running fine all season and just start this or have you not run it in months?
Did you run it out of gas totally and then this problem ocured?

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Toro Personal Pace sounds like it is running at half power


got oil in it, or do you add oil. Left outside alot, fuel line clogged. Is the gas old. Check the blades and the exit portion of the clippings. Does it have a drive train for ease of moving. those can bog down a mower. good luck

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1 Answer

What is the starting procedure?


Start with the choke on full press the fuel siphon button till the lines are full of fuel. pull handle until it tries to start but stops. move the choke to half then start again. let it run for 60 seconds on full. don't move the choke to full or it will stop. Either slow the revs and then put the choke on full or keep the revs high and slowly move the choke to full (to allow the governor to slowly advance with the new revs)

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Hi - I have a Toro Super Recycler # 20042. Been running great for a long time till today. Now it seems that the engine runs about half as fast as it used to. From what I can tell there are no adjustment...


since you have the cover off, clean and spray the governor linkage with WD40, Often there is a lot of
dirt and grass restricting the movement or airflow to the plastic vane that controls the throttle,this has to move freely in order to engine speed, be sure to clean the inside of the cover,always check the flywheel shear pin, if it is bent even slightly, replace it.this pin keeps the engine in time, therefore if the pin is not perfect the timing suffers, poor operation, hard starting etc
One other thing to check is the choke operation, does it open fully after the engine starts?clean with carb cleaner.

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Try the spring on the governor. sounds like it's not hooked up, or extremely week. I rebuild and sell these all winter. I've had it happen a few times. Runs really good! but, will ruin the motor running over speed like that. There are adjustments- some have the spring on a long flange of metal so it can be bent backwards to add tension- it doesn't take much! If the motor starts to rev up and down and up and down, add a hair more tension. It there is too much tension it will stall out when you hit heavy snow.

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Throttle control won't work after i cleaned the carb and disconnected the governor. when i move the throttle handle it does move the throttle control on top of the carb to the high position but when i...


Hi again Ed,
Starting at the carb throttle shaft, your linkage rod (with tiny spring wrapped around it) should be connected directly to the governor's arm. If there's more than one hole in the arm, connect the rod in the upper-most hole.
Now, at the base of the governor's arm is another hole (possibly on a tab jutting from the arm). The main governor spring should be hooked in this hole and then back to the sliding throttle control that moves when the lever on the dash is moved. (This one definitely has a tab and hole.)

The choke cable end hooks directly on the choke shaft and it has intuitive movement. Verify that the choke butterfly closes and opens relative to the cable control on the tractor's dash.

To insure that we only do this procedure ONCE, and we get it right the first time, let's set the internal governor to base-line at this time.

With everything bolted back up, move the throttle control lever on the tractor's dash to full throttle. Then get a 3/8 wrench and a slotted screwdriver and locate the round governor shaft coming out of the engine block. The governor arm attaches to this with a clamping-bolt. You will notice that the round shaft is slotted for a screwdriver as well.
Loosen the clamping bolt slightly with your 3/8 wrench, insert your screwdriver and rotate the round shaft clockwise until it stops. (It has VERY little travel, so turn it both ways to verify that your are at FULL clockwise position.)
Hold screwdriver there and move the governor's arm in the same (clockwise) direction until the carb's throttle is set to WIDE OPEN throttle. Still holding the screwdriver clockwise, retighten the clamping bolt with the wrench.
Next, move the throttle lever on the dash of the tractor to idle and back to full several times and observe the carb's throttle shaft, it should come down from full throttle to idle and back again freely.

Start the engine and be prepared to shut it off if it over-revs.
If it doesn't over-rev, your base-line settings are correct.

By bending the tab on the sliding throttle control (the one that has the main spring attached) you can now increase or decrease spring tension and change top speed of the engine. Do this in small increments and if you have a tachometer for single cylinder's set top speed to 3400-3600 RPM.

Sorry this is lengthy, but as mentioned above, we only want to do this once.

Hope this helps, and feel free to ask away if you need more info!
Dolf-

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1 Answer

1996 Ford Ranger SuperCab every time I crank my ranger, the engine rev really high. After running for a couple minutes, it begins to slow down to idle speed. Also, if the vehicle is put in gear while high...


With out a check engine code there could be few things that can do this, clean the mass air flow sensor, check your engine air cleaner and then if this doesn't help, have someone start the car while you watch the throttle linkages, after it warms up watch which linkage moves when the engine speed drops this will be connected to the problem sensor / auto choke. Try unplugging it to see if it helps before you go out and buy a new one.
I hope this helps
Sam

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1 Answer

Engine revs faster than it should. no controle of speed.


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