I have 15 propane tractors from mta thru 856.all have different starting chsracteristics. Dad was in LP business in the 60" 70s. we always start on liquid even our 560 that sits out and starts every day to feed cattle even at 25 below. most start the best with 1/4 throttle and choke pulled all the way. if it is trying to run while cranking starter but quits as soon as you stop. I would be inclined to check electronics further.I am not familiar with a mag but on my M I have a jumper wire from the battery to the coil I clip on to start then remove after it starts. It doesn"t get enough voltage during cranking.good luck
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Today's Featured Article - Pitfalls of Tractor Engine Rebuilds - by Chris Pratt. The first pop after you have put the machine together with your own hands is exciting and pleasing. The whole experience can be marred if one moves too fast and makes too many assumptions that they can just use "as is" some parts they should be closely scrutinizing and possibly attended to. In such cases, rework makes what could have been a fun project turn into an irritant or even a nightmare. Minor Irritants To give you an example of an minor but irritating proble
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