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fatlazyless · 06-05-2011, 07:26 AM

Went to use my 20", $119 lawn mower purchased from Wal-Mart a couple years ago for trimming up my 1/4 acre, and to my surprise, it has a problem. First time ever, it no worky-work too good? It runs pretty good until it gets warmed up for the first few minutes but then it will power up, power down and almost stall out before powering up again. It has something like a 3 1/2hp standard four-stroke mower engine.

There was gas in the tank left over from last season so I put some carburetor cleaner and new gas into the tank and figure the carb cleaner will clean out any old gas problem.

Have yet to look at the spark plug or air filter and have no clue.....what could the problem be? Oh yes, and I did replace the oil with 5-30, about 1 quart up to the line on the dip stick and removed the old oil.

Is there a Doctor of LawnMowers on board here? It has always been so well behaved in the past! What could be wrong?

06-05-2011, 07:26 AM	#1
fatlazyless Senior Member Join Date: Apr 2004 Posts: 8,796 Blog Entries: 1 Thanks: 301 Thanked 1,026 Times in 746 Posts	lawnmower problem Went to use my 20", $119 lawn mower purchased from Wal-Mart a couple years ago for trimming up my 1/4 acre, and to my surprise, it has a problem. First time ever, it no worky-work too good? It runs pretty good until it gets warmed up for the first few minutes but then it will power up, power down and almost stall out before powering up again. It has something like a 3 1/2hp standard four-stroke mower engine. There was gas in the tank left over from last season so I put some carburetor cleaner and new gas into the tank and figure the carb cleaner will clean out any old gas problem. Have yet to look at the spark plug or air filter and have no clue.....what could the problem be? Oh yes, and I did replace the oil with 5-30, about 1 quart up to the line on the dip stick and removed the old oil. Is there a Doctor of LawnMowers on board here? It has always been so well behaved in the past! What could be wrong? __________________ ... down and out, liv'n that Walmart side of the lake!