I have a 2008 Yard Machine MTD17HP OHV and after running for about 5-minutes it will stall. It will restart after about 10 minutes setting. Restart it and it runs about another 5-minutes. I can not figure it out. Does someone have any ideas ? All help will be appreciated.
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Yard Machine MTD17HP OHV
- Thread starter tstimac64
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Export threadI have a 2008 Yard Machine MTD17HP OHV and after running for about 5-minutes it will stall. It will restart after about 10 minutes setting. Restart it and it runs about another 5-minutes. I can not figure it out. Does someone have any ideas ? All help will be appreciated.
Check for water or trash in the float bowl. Check fuel flow with float and needle by moving the float up and down with your finger, make sure it's cutting off and flowing etc. Squirt out the main pickup jet while you've got the bowl off. Could be a piece of foreign material blocking fuel flow to the needle, or a blockage in the pickup tube. When you let it sit for a while, it will move off the inlet, but sooner or later it will go back over the inlet going to the needle and bowl and starve for fuel again. Hope this helps.
If you have a fuel solenoid on the bottom of the carb, Next time it die, turn off the key and then back on to see if you can hear a click from the solenoid. sometimes they will short out and stop working, sometimes only for a few seconds after dying. On the briggs with the walbro carbs, I have seen the plastic tip come off and will kill the engine. On most of those you can turn off the key and then restart the mower and it will run until the tip come off again. Have epoxied more than one due to that problem.
Check for water or trash in the float bowl. Check fuel flow with float and needle by moving the float up and down with your finger, make sure it's cutting off and flowing etc. Squirt out the main pickup jet while you've got the bowl off. Could be a piece of foreign material blocking fuel flow to the needle, or a blockage in the pickup tube. When you let it sit for a while, it will move off the inlet, but sooner or later it will go back over the inlet going to the needle and bowl and starve for fuel again. Hope this helps.
I pulled the carb off yesterday. It is all clean. I replaced the fuel line. When it stalls, the clear fuel filter has ( NO ) fuel in it. I took the shut-off solenoid off the bottom of the carb bowl and removed the rubber tip. Same issue, runs for 5-minutes then stalls. Then I cut off about 1/4 inch of the plunger from the fuel shut-off solenoid. It then ran for about 10-minutes then stalled again. No fuel in the clear filter. I am at a lost. Should I replace the fuel solenoid shut-off ? Any help will be appreciated.
If you have a fuel solenoid on the bottom of the carb, Next time it die, turn off the key and then back on to see if you can hear a click from the solenoid. sometimes they will short out and stop working, sometimes only for a few seconds after dying. On the briggs with the walbro carbs, I have seen the plastic tip come off and will kill the engine. On most of those you can turn off the key and then restart the mower and it will run until the tip come off again. Have epoxied more than one due to that problem.
I pulled the carb off yesterday. It is all clean. I replaced the fuel line. When it stalls, the clear fuel filter has ( NO ) fuel in it. I took the shut-off solenoid off the bottom of the carb bowl and removed the rubber tip. Same issue, runs for 5-minutes then stalls. Then I cut off about 1/4 inch of the plunger from the fuel shut-off solenoid. It then ran for about 10-minutes then stalled again. No fuel in the clear filter. I am at a lost. Should I replace the fuel solenoid shut-off ? Any help will be appreciated.
I pulled the carb off yesterday. It is all clean. I replaced the fuel line. When it stalls, the clear fuel filter has ( NO ) fuel in it. I took the shut-off solenoid off the bottom of the carb bowl and removed the rubber tip. Same issue, runs for 5-minutes then stalls. Then I cut off about 1/4 inch of the plunger from the fuel shut-off solenoid. It then ran for about 10-minutes then stalled again. No fuel in the clear filter. I am at a lost. Should I replace the fuel solenoid shut-off ? Any help will be appreciated.
If there is NO fuel in the filter, that would indicate to me that either the fuel pump is going out, or some obstruction as mentioned before. You said you went through the carb and fuel lines, so the only thing left is the fuel pump. Wouldn't hurt to do a "Jug Test" and find a tank and elevate it somehow and let it gravity feed into the carburetor and see if that helps. If so, then rebuild the fuel pump. Hope this helps.
If there is NO fuel in the filter, that would indicate to me that either the fuel pump is going out, or some obstruction as mentioned before. You said you went through the carb and fuel lines, so the only thing left is the fuel pump. Wouldn't hurt to do a "Jug Test" and find a tank and elevate it somehow and let it gravity feed into the carburetor and see if that helps. If so, then rebuild the fuel pump. Hope this helps.
It is a gravity feed. No fuel pump.
You don't have something floating around in the fuel tank that is cutting off the fuel flow do you. Also may sure the fuel cap is venting.
I removed the fuel cap to make sure it was venting. It is a gravity feed to the card. I do not understand why the filter keeps emptying.
I removed the fuel cap to make sure it was venting. It is a gravity feed to the card. I do not understand why the filter keeps emptying.
Does the carb have a fuel pump diaphram in it ? I do not see an external fuel pump. Fuel line goes from tank to filter then to carb.