720 LP problem

[lockrotor]

Have a 720 LP and will not start. rebuild the convertor and clean
the carb. I do have spark so I guess this is not the problem. Fuel or bad carb? When i
blow into the small hole on the side of the convertor I hear LP
bubbling in the breather and I guess this is correct? There not
much to the carb, and i can blow air thru it. I'm using a small LP tank hook up to the convertor. Any subjection any
one can give for me to look or try?

 

[TheJDWorkmen]

Do you have the oil bath air cleaner fully installed this can cause it not to start.

 

[lockrotor]

I filled it with new 10-30 wt. oil this morning and I did take it off and total cleaned it and plug the dirt snout so I can use the up right air stack.

 

[Ben.So.Tex]

If your tractor has a overhead breather stack pour about 1/4 cup of gas down the stack and see if it will start. If it does then you may need to adjust the regulator to the 5/16" cleareance. If if you got a kit like I did a few years back I had the same problem. there may have been a guage marker in the kit if not just back the bolt that is on the diaframe to 5/16" and it ought to work. Good luck. Please post Back.

 

[rick deere]

I have many lp tractors you have a hole in diapham, theres a small one on one side and a big flat one on the back, sent you an email.It will start if you pull it everytime.

 

[rick deere]

No you should not here air if you blow in it, I check them buy connecting my air compreeser to them and filling the carb tube with water if I get bubbles it leaks.

 

[lockrotor]

I put a new kit in from davenport for the m-4 and in the book it says to set it at 1/8 to 5/32, so I set it at 1/8 and put together. I tried to start it with some gasoline and I didn't get it to fire so I think I,m off somewhere on my timing . But I do have spark at 15% before TDC so I'm still trying.