farmall H tractor

[TGR Farmer]

I am trying to start farmall H I cleaned fuel system rebuilt carburator.It turns over it has spark it wont fire even with a little starting fluid.

 

[rustred]

Pull the plugs out and squirt some gas into the cylinders.
If its a gas problem it will start for 3 seconds. Or pull the
intake hose off the carb and mist some gas into the
intake and it will start. Then u know u have a fuel problem
to go over again.

 

[used red MN]

So are you trying to start a tractor that sat a while or
did it run last week? Did you have the distributor off?
Having spark means it will arc a hot blue spark an
across a gap to the block out of the coil wire? And if so
you checked it is coming through the rotor and cap to
the spark plugs? Does a stream of gas come out of the
carb bowl drain on the bottom of the carb? Do you
know that the fitting that screws into carb that line
attaches to has a fine screen on it that sticks inside the
carb and can plug fairly easy?

 

[Steve@Advance]

Have you checked the points gap, and checked the spark quality at the plug end of each wire? Each should
be able to jump a 1/4 inch blue hot spark to ground while cranking.

Is the battery fully charged and good?

Is the starter healthy?

A simple test, disable the spark, disconnect the air filter hose from the carb. Hold your hand tightly
over the air inlet of the carb, have an assistant crank the engine through for a few seconds. You should
get a strong steady vacuum and your hand wet with gas. No or low vacuum means valve trouble, usually
stuck open if it's been stored a while. Good vacuum and no gas means no fuel in the carb bowl or the main
jet is closed/blocked. Be sure the adjustment screw is backed out a few turns and the tip isn't broke off
in the jet.

Sometimes putting a teaspoon of oil in each cylinder, and spin it out with the plugs out will help raise
compression if it's been sitting, or the rings were washed down with gas. Be sure the oil is not gas
contaminated.