[Farmall] Fw: Farmall M hard to start

[john hall]

My thoughts exactly regarding the magneto, Jim.

As for the manifold, yes they are threaded. See if you can find someone with 
a pipe tap that can clean it up for you. It is a good possibility the 
manifold is shot if the tractor has been run a long time with a pipe merely 
shoved in the outlet. Once you get the threads cleaned up, go by the 
hardware store and get a new piece of black iron pipe. Don't get crazy 
screwing it in as the wall thickness on the manifold is kind of thin and you 
may have a crack there already that will get worse when the pipe tightens 
up.

John Hall