Repairs When auto choke opens engine stops, any ideas?

njw

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Rebuilt my son's MTD Mower (12av55dq713} with Honda Manual auto choke engine. Starts fine but when choke releases engine dies. I think it is the fuel filter. I can run the engine with the choke lever half way. Any Ideas?
 

bertsmobile1

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Well it is either not getting enough fuel or is getting too much air or you have assembled the gaskets wrong & blocked off the bowl air vent.

Start the mower then saturate the manifold area with WD 40 ( or similar ) FROM A TRIGGER PACK NOT A SPRAY CAN.
White smoke = air leak.
slide the carb off and blow through it with a compressor turned down low
If there is no fuel blowing out the engine end you have a fuel blockage
If you get a good mist of fuel from the engine end the vent was blocked.
 

njw

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May 20, 2019
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Well it is either not getting enough fuel or is getting too much air or you have assembled the gaskets wrong & blocked off the bowl air vent.

Start the mower then saturate the manifold area with WD 40 ( or similar ) FROM A TRIGGER PACK NOT A SPRAY CAN.
White smoke = air leak.
slide the carb off and blow through it with a compressor turned down low
If there is no fuel blowing out the engine end you have a fuel blockage
If you get a good mist of fuel from the engine end the vent was blocked.



How should the gaskets be assembled? Do you have a schematic? That carburetor is a pain to assemble. I may have positioned them incorrectly.
 
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