JOHN DEERE M won't idle

[Anonymous-0]

I just aquired a JD "M" had not run for about 2 years. gas was drained when shut down. checked tank appeared good and clean. replaced plugs wires points condenser rotor cap. put in new gas. tractor started right up but would not idle. pulled carb off(tsx245) model and done a rebuild on it. also done compression test with engine at running temp 115 each cylinder. tractor still will not idle. runs fine from about 1/4 throttle to full throttle.also checked timing (ok). what am I missing. open to all and any idea's.
thanks in advance Butch

 

[RobMD]

Idle adjustment is still screwed up. either that or the governor linkage is causing the problem.

 

[Anonymous-0]

thanks Rob I have tried adjusting the carb several times. when at low idle the engine speeds up and slows down like the governor can't find where it wants to stay.

 

[CENTAUR]

The tsx is simple.I wonder if you have overlooked a clogged orifice that has residual dried up gas from a long time ago.It is easy to overlook.Use canned carburetor cleaner such as(B33-Berrymans)and blow out right now as it will dry again very fast.CENTAUR

 

[Anonymous-0]

CHECK THE INTAKE GASKET MAYBE, OR LOOK INTO GOVENOR ADJUSTMENT IF YOU THINK YOU HAVE THE CARB SOLVED. I HAVE ALWAYS STARTED SIMPLE AND WORKED BY PROCESS OF ELIMINATION...

 

[Dave H]

Butch

Did you run some kind of wire or drill thru all the passages - like banjo wire nothing else?

 

[Hoss in Maine]

You need to refer to Pat Brownings carburetor page. Latter Hoss

 

[Hoss in Maine]

You need to refer to Pat Brownings carburetor page. Latter Hoss

 

[KB]

We had the same issue with our 40 and found that the throttle shaft was worn too much, replaced it with an new one from Deere and not only did it idle but the power increase caught me off guard.

I guess over the years we just kept adjusting things and how we used it so we could work around the problem until you couldn"t work around it anymore.

 

[DaveS]

2 things...

Make sure there is not any play between the carburetor and goivernor linkage. If the hole is wollered (is that a word?) any or if the rod is wore where it goes into the throttle it will make the governor "hunt" and maybe die.

Also as mentioned earlier, be sure the throttle shaft is not wore. When you have this carb right, The throttle shaft will have just a slight resistance when you open and close the throttle by hand. Try moving the shaft inside the carb and see if you have any up and down movement.

 

[Anonymous-0]

Butch, I had the same problem and it turned out to be a plugged orifice in the carb. I found it by taking my uncles working carb off and then making sure I had as many holes as it did, turns out I was one short and so I started hunting until I found it.

That will fix your prblem if you can clean that one out.

Good Luck, JD Gimpl

 

[Ida Red]

Believe that KB is right.Try a new throttle shaftand that might solve your problem. Red