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Yanmar Tractor Stalls
Symptoms:
Tractor stalls after a few minutes of use
Possible Causes:
1)- Is the tractor overheating? - click here
2)- Water in fuel or bad fuel - Drain tank, lines, bowl & use good fuel.
3)- Is there a lot of smoke or other symptoms? - click here
4)- Your engine may be starving for fuel - see below.
Solution:
1)- Try loosening your fuel cap. Sometimes the fuel caps will prevent the fuel tank from breathing and the tank will develop a vacuum. This prevents fuel from running to the engine and it stalls. After a few minutes/hours of setting the tank pressure will equalize and the tractor will run again.
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2)- When the tractor dies, quickly remove the rubber right hose where it goes into the injector pump (follow the rubber hose from the fuel filter assembly up to the engine - remove right where it attaches). You should get a good stream of fuel out of that line. Be sure the fuel flow lasts enough to fill up at least a quart jug. If you do not have a steady flow of fuel then you have a blockage in something before that point. Try removing the hose at the fuel filter assembly, then at the tank to find out where the obstruction is located.
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