20 Most Recent Yard Machines 11A54MC006 21Inch 139cc MTD OHV Gas Powered Side Discharge Questions & Answers

Hi,
Straight 30 weight oil is best, but a 10-30 will also work...

heatman101

Check all pulleys for bad bearings by removing belt and they should turn freely without feeling any resistance or roughness, make sure idler pulley is not loose on shaft, check for alignment of belt (deck itself could have warped).

The primer button is usually on the carburator of your machine. Most of the time on the side of the carburator , but sometimes on the front of the carburator. GOOD LUCK.

There is a fuel filter. To remove it Drain tank Remove c-clamp from fuel line and remove fuel line from tank outlet Pull out old fuel filter from tank outlet. Replace it if it is dirty, they can't be cleaned.. To install a new filter, Hold from the shouldered and insert it completly to the shoulder in to tank outlet. Replace fuel line and c-clamp

Wet grass will do this. If the bagger is partially plugged up with old grass this will do it also.

the plastic top the vented part has to come off eather screws hold it on or a flat screw driver will pry it off. Then you will see the mounting bolts that hold on the pull starter. Once off you will have access to pull cord.

Sounds like you will need to clean your carburetor.
Sometimes you can get by with priming it a few times, and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
If the mower/weedeater is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, You will first seat the jet screws and count the number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns they were in/out.
Please do not forget to rate me, Thanks
Good Luck, I hope this helped

did it die right after a refueling? You might have water in your fuel can.
Which now is probably in your mower.

Drain out all the fuel *(remove the carb bowl too) Get some fresh gas *(dump your can of fuel out into a secondary container so you can look for water in it. If it has water on the bottom...you should dispose of it wherever you dispose of your mowers waste oil.

You should be sure you have spark. Which means you need to remove the spark plug from the head and with the boot still attached dangle it on the metal head and give it a pull and look for sparks. If you have no spark you might need a new plug or coil. Thats really all you can do for weak or no spark. Be sure the plug is clean and free of oil/gas contamination as that may have fouled the plug.

Good luck and be careful!

could be a number if things, dirty carb, old gas, dirty coil contacts, bad spark plug. First try replacing the spark plug and if it is old gas remove and replace with fresh. if that doesn't do it then the carb needs to be removed, cleaned and blown out thoroughly with an air compressor. reassemble and reinstall. next is to remove the recoil housing and clean the coil contacts. the coil is attached to the spark plug wire. remove and with some old gas or wd-40 and a wire brush, remove dirt and rust from contacts as well as magnet on the flywheel. be sure to leave the proper gap between the coil and flywheel when you replace the coil.

if everything else is working fine then it has to be your drive cable or the drive motor itself. First check to see if it feels as though the cable is actually moving, slid the lever back and forth, if there is no resistance then the cable has become unattached at the lever. Next is to see if the cable is attached at the other end. you will need to follow the cable and remove the cover that to see if the cable is attached to the drive. Also, is your drive belt good? loose?

belt slipping? or engine??

there is a dirty jet inside the carb take it apart and clean it

Directly underneath the air filter housing.

New "powermore" engine? recoil rewind starter comes as a complete assy. If the spring is broken this is your only option