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Question DetailsAsked on 8/14/2017

I can spray starter fluid in the carb throat and it will start, but die right. And it won't fire, if it does witho

just cut the yard. then cannot get restated. starter fluid will make it fire, but dies right out. what is going on ?

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1 Answer


Since it starts and runs, sounds like ignition is OK - so fuel starvation would be the logical assumption. Check it has fuel, that there is not a layer of water in the bottom of the tank - though if it was just running ... Perhaps check your choke setting - if over-choking it should cough and put out black smoke, but starter fluid is volatile shuff - as long as you have a spark most engines will try to run on it for at least a few seconds even if fuel-air mixture is way off.

Another possibility - not pulling enough air to pull the fuel from the tank - check your air filter (especially if you just mowed a bunch or leaves or dusty ground) - might be the air filter is so clogged that you are not getting enough air for it to run.

Another possibility (amongst a bunch) - the carb/air cleaner is loose so it is getting way TOO much air, so is not pulling a vacuum on the fuel system so it is not pulling fuel from the tank.

Another possibility, though generally you need to have a new gasket at hand if you do this, is pulling the fuel bowl if it has one, and seeing if it is watered or sedimented in. If it has a cartridge type fuel filter try pulling that off and seeing if the cartridge is crudded up - or if the closed metal type, run a bit of gas through it to see if it flows through readily.

Otherwise, if those do not help, and dumping out fuel and checking (in a clear glass container) that is does not have a layer of water in it, them Lawn Mower and Power Tool Repair would be your Search the List category for diagnosis and repair.

Answered 3 years ago by LCD

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