I cant pay for answer. i have a toro upright.the primor button does not prime

You can download it here,
http://lawn-garden.needmanual.com/1998-toro-power-shift-38500-38505-38510-38513-38520-38525-38540-38543-38545-38570-38573-38565-38580-snow-blower-service-manual.html?d=df_m_en&tf=f507af4353af45dd5760777b20ae4f8f&trd=788835f24c

The fuel pickup tube in the carburetor is probably clogged. I don't know how handy you are, but you have to remove the carb, disassemble it and blow out all the orfices with compressed air and possibly run thin wires into the tubes and holes. Good Luck! the last time I had to do this was in the middle of a snowstorm!

may need a carburator kit.

Pull the air cleaner of to see if fuel is getting to carburetor. If it is then see if its getting fire to the plug by taking out and put the wire back on but be careful not to hold the wire or the plug if fire is week then get a new plug or get a new one and see it that helps

Fuel Starvation - Float Bowl Carburetor
1) remove air filter assembly
*be cautious of tearing the mounting gasket. If it does tear, you HAVE to replace it. It is part of the priming system
2) remove the float bowl fastener. This is the main jet
3) carefully remove the float bowl, the rubber o-ring/gasket will not be able to be used if it is removed, you WILL have to replace it
4) using a spray 'carb cleaner'
spray up thru the center of the carburetor
spray and clean the main jet with cleaner and 'tag' wire
(tag wire is very thin, and can be used to clean the hole in the center of the main jet)
5) clean any debris from inside the bowl or carb body
6) re-install bowl and center bolt, air filter assembly

*if you need gaskets, your Briggs dealer can supply. The kit is cheaper than individual gaskets, and all the parts needed to finish the above repair are in the kit.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

make sure your fuel lines are all clear and that you have nice and fresh fuel in your tank, check the cleanleness of your carb and needles

overhaul the carby , paying to something holding the needle off the seat and flooding the engine

Morning,, yes I did find the problem.. previous person that worked on it installed the main jet tube upside down. The Red one with the two "O" rings on it. I cut off the crimped end and opened the hole and reinstalled it and it started right up.... Thanks anyways....

the diaphram in the carburator is bad or broke which is behind the primer they brake or rip the will not keep gas flowwing through try that

I had similar problem and cleaned the spark plug and that seemed to have worked, but I think that may be a temporary fix because the engine still seems to be running unevenly. I feel that it must be a larger problem with the carb. If anyone can help this novice to adjust the carb or clean both carb and filter, or offer other solutions I would appreciate your assistance.