Accidentally put oil/gas mix in lawnmower...now what?
Question:I did it this morning on accident and the mower worked fine for 2 hours of mowing. This evening I went to finish mowing and the mower worked ok then just stopped. I tried to restart it and it works for a second then stops. I checked the levels and put just plain gas in and it still won't stay running. The oil is a little low. Do you think that could be the problem or did I really mess it up by puttin goil and gas mixture in this morning?
Answers:
Items needed: NEW Correctly-gapped spark plug, wrench or socket to remove carb. bolt and spark plug
The low oil would not be the cause and if it would start at least your engine hasn't seized up.
The most likely cause is a plugged fuel system or ignition problem. You can clean it out, but it's tricky. First, disconnect the spark plug wire from the spark plug. Second, drain any remaining oil/gas mixture by disconnecting the tube leading from the tank to the carburetor, next, remove the small brass bolt holding the carburetor bowl, a small (usually silver) tuna-can shaped metal cover on. Be prepared for this to be filled with a small amount of fuel.
Spray carburetor cleaner all over the round plastic part (float) and any other part covered by the carb. bowl and thoroughly wipe down with a paper towel or cloth, being careful not to leave any fibers behind. Repeat this spray and wipe down process at least once, but more if required. The parts should not feel "oily" if done correctly.
Next, clean the brass carb. nut that holds on the bowl by first rinsing thoroughly with warm water and cleaning with a cotton swap dipped in rubbing alcohol, or as a substitute, gasoline. Note that most MTD brands and Toro mowers use this as a fuel jet and the tiny holes in it must be clear (BUT DO NOT ENLARGE THEM). Replace the carb. bowl, being careful to make sure the gasket (usually a rubber ring) is in the correct position. BEWARE of over tightening the carb. bowl nut as it is brass and will break off.
Now, fill it with fresh (less than 30 day old) fuel. The mower may start and run at this point, but if it doesn't, continue these steps...
Next, remove the spark plug from the engine. You will likely need to replace it, but could be cleaned in a jam. Spray a moderate amount of carb. cleaner into the spark plug opening (cylinder) and stuff a paper towel or clean cloth into the hole to "clog" it. Rotate the engine by attempting to start it (pull the rope/turn the key). Spray carb cleaner and rotate the engine at least 3 times. Replace the spark plug with a NEW correctly gapped spark plug and reconnect the spark plug wire.
Additionally, you may need to remove the exhaust and clean it thoroughly (but DO NOT use the flammable carb. cleaner to do so). If you remove this, you may need a new exhaust gasket or seal if your mower uses one.
Happy mowing!
Hello
you have fouled the spark plug with the oil that was mixed in the gas pull the spark plug out and clean it or replace it with new
If you haven't run the engine, disconnect the gas line and drain the tank. If you have run the engine you will still have to drain the oil gas mix from the tank and if lucky the next tank will clean any oil in the carb. out. however if it doesn't run well after the next tank then you may have to have the carb. cleaned.
Try cleaning the spark plug. Also, remove the air cleaner element and give it a couple of drops, and only a couple of drops, of clean gas right into the carburetor opening, close up the air fliter again and try to start it. If it starts, let it run for at least 5 minutes to clear out the mix you put in. If that doesn't do the trick, its off to the shop because it needs more help than you can give.
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