I'm back, MF gas 50 questions

Haven't been on the MF/MH board for a while, thanks again for all the awesome help you guys gave me on the 65! A guy stopped by a couple months back and mad on offer on it that Dad was happy with, so it's gone. It's mostly Fords running the show here now.

Been working on a horse farm and was asked to fix a Massey Ferguson 50 with a gas (134?) continental engine. Hasn't run in a year, was parked outside under some trees as it , "Lost power all of the sudden, and ran ruff". So I went and looked at it today.

Gas is probably a little old and not bad. Battery was dead, brought a new one along with to try turning it over. No air filter, just had a little cleaner element taped to the end of the air cleaner pipe. Checked fuel flow, points and spark plugs, and gave it a whirl. Fired right up and ran smoothly at a low idle for about 15 seconds, then shut off. Tried again of course but couldn't get a pop. Checked spark again, None. Checked points again, used a voltage meter to test continuity, and it appears to be all good from my knowledge of Fords. Started chasing voltage and it's not getting through the coil.

So, my question is, should I just get a new coil for it and try? I would say coil except I wouldn't think it would run fine and then suddenly be no good anymore like that. Unless I did something to fry it? Or am I checking coil wrong?

During cranking over looking for spark, it got quite flooded, and found that all plugs except cylinder #2 were wet. So I'm assuming this means intake leak at the intake port on the #2 port? Of course will try to get it running before messing with that.

Thanks for any and all help! Will try to get some pics uploaded soon.

Here's the pics. It dis in pretty good condition. Also is this the original carb?

Going by the hood that is a Massey-Harris 50 (it has the indentions on the upper sides of the hood). The carburetor is original to a M-H 50 prior to tractor serial number 514381. The original part number for the carb is 182748M91 (the carb is a Carter UT-2418-S).

The carb looks like the original, the tractor looks to be in very good shape/original for its age.

That looks like a very nice tractor. I would check the voltage from the hot wire from the battery to the starter relay (need good connections here), and then from the relay to the starter switch (no frayed or broken wire), and then from the switch to the coil (to make sure that the ignition switch is not bad or intermittent), then the low voltage wire from the coil to the distributor to make sure that is not grounded or frayed (which would cut off any voltage to the points), and then the high voltage from the coil to the top of the distributor, and then check the points, condenser and plugs. Condenser might be bad. If you are not getting spark to the plugs, the voltage is being lost somewhere within that route.

What year is the tractor?

I just bought an early MH 50 about three weeks ago. It hadn't run in 5 years or so. I cleaned the sediment bowl filter, got rid of the hard rubber lines and inline filter, cleaned the carb screen. It looks like PO modified yours with an elbow. I had spark trouble like you describe. I put a known to be good coil on it. No change. Points and condenser and it fired right off. I cleaned the carb this week and it now runs 100%. Its the same carb as yours. Carter. Its kind of different, cast upper and aluminum lower. I think mine is serial# *****376, making mine a 1956. That one looks to be in pretty fair shape.

here is a pic of my MF50 I bought this past summer.

I believe the carb. is the same as yours.

Here's the voltages from the coil. Looks like 10 v to the coil after the resistor, is that too low? Less then a volt from coil to dist, 10v to dist cap. Could this be coil then?