BillH wrote:
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Ultraman wrote:
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TommyT-Bone wrote:


Why would a lawnmower run with the choke open but die when the choke is closed? Lets see what our panel of experts has to say. It has been sitting for 8 months with gas in the tank. The gas had turned. You could smell the turpentiney smell.I changed the fuel and ran the motor. Runs fine as long as you don't close the choke.

Something is restricting the flow of fuel to the carb so to get it to run it has to be enriched......sounds good to me.....

One of you Um,er gentlemen has this bass-ackwards.
A motor is supposed to run fine with the choke open.

You only close the choke to cold start.

Therefore, one must assume that this is really a problem and not Friday Funnies, ie. the motor will run with the choke closed but dies when it's opened.

Pull the carb off, turn it upside down and remove the float bowl. In the center will be the main jet, it's probably clogged with that goo. Put the long nozzle of a can of carb cleaner on thet hole and give it a good shot.
Then carefully slide the steel pin out thet holds the float on (note that the float needle has a small wire that attaches it to the float). Gently remove the float & needle and give the brass fitting where the needle was a shot of carb clean.
Reassemble and cut your lawn.