Question about Briggs & Stratton Briggs Stratton Intek V - Twin Vertical Ohv Engine with Electric Start 22 Hp, 1" X 3 5/32" Shaft, ModelNo. 44K777 - 0027 - E1
My Mountfield rotary mower is about 10 years old. It has been regularly serviced. Recently, it starts OK but when hot "hunts" (i.e. the engine speed changes at constant throttle and it lacks power). Eventually it just stalls with a "pop" from the exhaust. I have replaced the plug, checked the carb jets and float chamber and adjusted the mixture. I haven't yet de-coked it or checked (if there is one) the governor. Any ideas greatly appreciated.
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Posted on Jan 02, 2017
Just adjust the idle speed control/Fuel air screw located pointing downward on the bowl of the carb,Just start the engine,idle up high and turn the screw until it levels out and runs smooth.
Posted on Jun 03, 2009
First thing to do is pull your dipstick and check for broken or missing O-ring also as you pull it, look to make certain that it was seated properly and all the way locked. If either condition exists, you will be leaking into the crankcase which will cause your symptoms
Posted on Sep 14, 2009
You will need to replace or clean the air filter, and probably the spark plug. Do not operate the mower for some hours to allow the oil drain (inside the engine). Check oil level and fill it if necessary. Some oil remaining in the exhaust should be burnt next time the lawnmower operates.You will see smoke at the beginning, that will be normal (burnt oil). Hope this helps!
Posted on May 25, 2010
hi Scott. The problem you are having is not due to the screw settings. It is due to a partially gummed up carbeurator. Get a can of carbeurator cleaner and add the recommended amount to the fuel tank. Also get a can of starter fluid and an assistant. While you start it up, have your assistant spray some starter fluid into the air intake area of the engine. Keep spraying the starter fluid until the problem clears and the engine takes off on it's own without any more starter fluid. Joe
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Posted on Dec 02, 2010
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