48 H Farmall carb (I think) question

34Case · Jan 21, 2023

if i have it opened up to full throttle. When I start it up, it ill cut out and die. Midway, it runs fine. Im guessing its a carb problem, but I dont wanna do any adjusting till I hear from U experts which what needs adjusting

used red MN · Jan 21, 2023

A few more details would be helpful. Is this the first
start of the day or is it doing this even with the engine
warmed up? Usually on the dis start of the day I open
the throttle about a third of the way, providing it has
electric start I turn the engine over a couple
revolutions with full choke. If it starts right away I push
the choke in all the way. If it is under 30F or so it may
need another quick choke if it slows down and tries to
die. Then if trying to move the tractor fairly soon when
letting the clutch out if the engine faulters I give it a
quick choke out and back in. After 3 minutes or so they
usually stay running with no choke. If you are a warm
up your engine at half choke person, that is not
needed on letter series Farmalls, it just fouls the plugs.
If your tractor will run fine for a bit at full throttle but
not stay running at that setting for 3 minutes or more
you have something restricting gas flow to your carb.

Brownie450 · Jan 21, 2023

When we start our letter series, we have the throttle
about 1/4 open. When it is running at low idle, it
allows the oil to circulate & the engine to warm up.
I have never started an engine at full throttle.
Jim

Janicholson · Jan 21, 2023

Good answer!! Jim

fastfarmall · Jan 21, 2023

i got my B,M's and H's marked with wite-out, or some call it correction fluid,to prevent fast starts, so every body can see where to start the engine,just a nice idle is all you need!

48 H Farmall carb (I think) question

34Case

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used red MN

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Brownie450

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Janicholson

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fastfarmall

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