Question about Yard Machines 11A08MB006 22Inch 139cc MTD OHV Gas Powered Side Discharge

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I have an 22in yard machine that is hard to crank. if i put gas in the air filter, it will crank long enuff for the gas to burn off. i have cleaned the carb out 6 times. i work on small engines so i know a little. but this thing has got me. dont know if there is a plate coving up a jet or not. any help please. ps. it has no primer, has an pull choke.

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  • tnuts4golf Sep 10, 2010

    i did all of that. thanks for answering back. still will not crank unless i spray carb cleaner at the back gasket. the carb gasket at the engine. when i do that, it cranks but skips just a little. i think its sucking air at that back gasket. i'm going to replace it and try again. what do you think?

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This is MTD's engine that they have made for them in China. It is a Honda clone. In the carb, there is a removable jet and stem that must be cleaned very well. Pull the carb. Remove the bowl. Look up from where the bowl screw mounts, you will see a brass slotted jet. Remove it. Next. from inside the carb bore, push down on the brass nozzle that extends up into the bore, it should come down thru the hole that you just removed the slotted jet from. Clean both the nozzle and the jet. Run a very fine piece of wire thru all of the holes in the nozzle. BE CAREFUL not to enlarge the holes, only get them clean. Reassemble. This is one of the more difficult carbs to get clean. Don't forget to flush and dry the fuel tank and fuel lines to remove any debris. Also, check with your local parts house to see if a replacement carb is reasonably priced. Most of the time they are pretty pricey, but sometimes I get surprised by how cheap one is.
Good luck!

Posted on Sep 10, 2010

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