Question about Husqvarna Lawn Tractor 48" Deck, 23 Hp, Model# Yth2348

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Going dead atfer fuel system simple repair.

Lawn mower has had a brand new fuel pump replace new filiter and replace fuel line along with air filiter kit.But still runs for a few secods and then gos dead again ,what eles should I be looking at ? " husqvarna tyh2348"

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Try checking the carburator, spark plug/wire, idle setting, tightening all the hose connections, and, maybe check the manual's trouble shooting guide, and if you still have problem with your mower, try and find a good repair shop and have them diagnose the problem.

Hope this helps! :)

Posted on Sep 06, 2009

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I'm thinking you probably have already answered your own question.

Your standard fuel system usually consists of either a gravity fed system, whereby the tank is elevated on the chassis, fuel flows through the line into an inline fuel filter and then into the carb. In some systems, a fuel pump is needed to supply a better flow of fuel. You are basically saying, you took the filter off the line going from the pump to the tank, fuel flows freely which leads me to believe this may be a clogged fuel filter.

For this particular model however, there are literally dozens of potential causes, anything from a clogged fuel filter to improper fuel being used in the machine. Potentially, it could also be clogged or faulty injectors, in which case you are probably better off taking it in to a dealer to have them test that out and repair it if necessary.

Sometimes the injection pump shut off valve can be the cause as well, it doesn't reset like it's supposed to. The only way to really test that however is to simply switch the key back to the off position and then switch it back on, and see if it fires up.

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Other option is lawn mower repair shop....

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Lawn mower

The best way to check the mower is to follow the fuel system first, and then the air system.

I know you've checked some of this, but its easier to go step by step from the beginning anyway:

Fuel System Check:
Fuel Level, age of fuel, quality of fuel. Drain the lines to check for plugs in the lines. If your mower is equipped with a fuel filter, check the filter for clogs (Usually inline on the fuel line)

Check the priming pump and the fuel pump/suction hose. A lot of push mowers run on suction, and a small leak can be to blame, look for wet areas along the hose to trace for leaks.

Air System: Check the air filter for clogs and clean it out while you've got it out (always helps extend the life of the mower), check the air lines for clogs and debris. Check the carburetor, make sure the throttle cable is working and all parts are functioning.

If I had to make an educated guess as to the source of the problem, I would lean towards the air/fuel mixture. It sounds like the mix is too rich. A telltale sign of this would be a significant amount of smoke on start up. Try playing with the choke (if equipped) or carburetor to lean out the mixture a bit (Adding more air and less fuel) and give that a go. If it starts, I would doubt it would be the coil or part of the electrical system.

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