Toro Guaranteed to Start Won't

A customer dropped off a Toro Model 20071 with a 2007 serial number. Mower will run on starting fluid but not on its own. I completely cleaned the carburetor, but it wasn't very dirty. I followed the priming instructions carefully and I know gasoline is flowing from the tank to the float bowl, but no further. I have a replacement primer assembly, but the snap ring set up looks like it will be detroyed when it is picked out of there. Am I missing anything here? Does the small diaphagm that is attached to the primer continue to be a key component in moving fuel from the float bowl to the intake valve area?

 

What's on it By your description of the primer, it sounds like a briggs, but diaphragm attached to the primer doesn't sound right.

 

Parts that came in for it were Tecumseh (Indian Headress and everything) I called this part a diaphagm, but it may not be. The primer button is on the side of the carb above the float bowl. Primer instructions are to push 3 times holding for a second on each push. Behind the primer button is a small spring and then a small device about the size of a nickle. I would like to replace all of these items, but they are held in with a locking ring that will have to be pried out VERY carefully. I want to do it without ruining the carb for sure. I have new primer, locking ring, and device mentioned above. I would guess that it has some type of fuel pumping action, but it is new to me. Somebody has to have removed on of these rings out there. How do you do it?

 

You simply take a pick and lift up on each tab around and around until it comes out. if the old primer is to be tossed out it can be torn out first with a pair of pliers and it will be much easer to remove the ring. But there are two O-rings on the emulsion tube in the center of the carb that need to be replaced!! This might be your problem not the primer. Also the mounting screw for the air filter housing (the one on the outside) must be in place for the primer to work.

 

Thanks for the tip on the primer but I cannot see a slot to remove the internal tube you mention that has the two O rings around it. How do you remove the tube? (I can see the lower O ring, never thought about those being critical to this system)

thanks for the heads up!

 

take a`small pick & pick out the lower one it will break into pieces add a little oil & you can push out the tube from the top & than pick out the top o-ring.

 

WML13 take a look at this picture of a carburetor torn down, study it, the o rings in question will be on right side of diagram.


Parts and Diagrams for Toro Consumer 20071, 22in Recycler Lawn Mower, 2007 (SN 270000001-270999999)

 

I Have a parts breakdown for the Carburetor. If you place the Carb on your bench and turn it upside down so you can look at it from the bottom with the float bowl removed and look at where O ring nozzle tube is in the Carb, please tell me what tool, or process you used to remove this tube! It has no slot for a screw driver, just two VERY tiny holes in it, probably for fuel to go thru. How do you get it out to change the O rings?

 

Nozzle Removal:

Read post #6 and look Here:


Disassembly, Cleaning and Repair of Tecumseh Series 11 Carburetor

 

Read your post from top to bottom. Look at Item number 17. It says. "removable" main jet and shows it with two O rings, one at each end. It does not tell how to remove it. When I get that info I am on my way! The other info was very valuable too, and I have saved it. but I need more.

Thanks!

 

Pick out the bottom O-ring and it will just push out from the top if you spray a little oil up the post.

 

If you will take a small flat tip screw driver and stick it in the carbuetor past the butter fly and press down on the "removable" main jet it will pop right out and the upper o-ring will be there, most of the time it stays stuck up inside of the carburetor and you have to dig it out, most fixers miss it, if you don't take it out it will run like JUNK!! Good luck.

 

That is what I needed. If it works, the beer is on me....

Thanks for all the replies!

 

I hope it works for ya, these carbs can be a pain, but once they are right they run sweet. Good luck!

 

It worked. top o ring even came with it. I will get a set ordered and put all new stuff back into it. One thing mentioned in one of the previous posts mentions a screw that had to be tight on the air cleaner cover. This model has no screws in the cover, it just twists to lock or unlock to remove it. Did I miss something here? (I'm sure glad you didn't tell me I had to drill out that tube, I can't make enough money on this project now!)

 

There is a plastic end on the carburetor and it has two bolts in the plastic cover for air cleaner, if the bolt closest to the primer bulb is out it will not prime,,,it is tapped into the chamber for the primer bulb. Good to here you got the o-rings out, they can be a pain. Good luck.