LA150 Not getting gas to fuel filter is this fuel pump or gas tank issue?

L

la150

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I alternate between this mower and a robo mower and noticed the last time I used it about a month ago, it was hard to start. Once I got it going it was fine.
Would not start a few days ago , well it did for a few seconds, then died. Did this again and never started again. Got a new fuel filter and notice it's not getting any fuel whatsoever .

What would this most likely be? Something in the tank blocking the flow or the fuel pump itself. What is best way to test?

Thank you!!!
 
Will it run on carb cleaner or starting fluid?
Remove the fuel line between the fuel pump and carburetor and see if fuel is exiting the fuel pump.
Take a look at the pulse line. This line runs from the bottom of the fuel pump to the engine. It should be connected and in good shape. There's an arrow on the fuel filter. Is the arrow pointing towards the carburetor? Can you blow though the fuel line running from where it attaches to the filter and towards the tank.
I don't know how old your mower is or if it has the original fuel lines. It probably wouldn't hurt to replace all of them.
Do you hear a click when you turn the key to the run position? If you don't it's likely that the fuel solenoid isn't working correctly.
 
It sounds like grass chaff and dust caught in the fuel supply line. The fuel tank collects this stuff over many years, and it eventually chokes the fuel supply. If this is a rear mounted tank, the elbow at the top of the tank is suspect.

Blow compressed air back in the fuel supply line may temporarily clear it, but the problem will repeat.
 
Auto Doc's said:
It sounds like grass chaff and dust caught in the fuel supply line. The fuel tank collects this stuff over many years, and it eventually chokes the fuel supply. If this is a rear mounted tank, the elbow at the top of the tank is suspect.

Blow compressed air back in the fuel supply line may temporarily clear it, but the problem will repeat.
Click to expand...
Yep! If the problem repeats, he will have to remove the tank and clean it out thoroughly. The mower probably still has the original fuel lines.
 
Yes it is all original and yes it starts on starter fluid. Will try to back blow the tank using compressed air and will report back if it makes any difference. Thank you both for the tips...
 
Hello M.,

Flexible fuel hose with lots of bends or lines with 90-degree elbows are bad about catch tank trash long before it reaches the fuel filter.

I had a fairly new Cub Cadet zero turn a few months ago that the guy was having fits with it starving for fuel. He insisted it needed a new carburetor. (Very typical situation)

I check it out and found the pulse pump was only spitting mostly air and very little fuel. I ended up blowing all the lines to clear the trash out, then retested fuel flow and it was good. Ultimately, I pulled the fuel tank and cleaned it out. Modern molded fuel tanks are difficult to get trash out of.

During my visit I asked him if I could check his fuel can. It was sitting open under his overhang; I removed the top & spout and looked inside then had him look inside while I said "here's your sign" jokingly. He purchased a new fuel can with a flow control spout.
 
This tank use a fuel pickup with an elbow fitting at the top of the tank. Its is smaller hole size than the pickup tube. Anything large to the elbow can be suck up the tube. Insects and pieces of fuel cap seal can block it. If this is the case you might reverse blow these out back into the tank and then you clean out tank; although, you may have to remove the tank to do this cleaning. Another possible is a plugged fuel cap vent though that is rare.

Auto Doc's said:
Hello M.,

Flexible fuel hose with lots of bends or lines with 90-degree elbows are bad about catch tank trash long before it reaches the fuel filter.

I had a fairly new Cub Cadet zero turn a few months ago that the guy was having fits with it starving for fuel. He insisted it needed a new carburetor. (Very typical situation)
Click to expand...
Sounds like someone been on YouTube.
 
You Tube is a good resource if the problems we find are verified to be similar. I'm glad we have it these days, because I remember a lot of wasted days and hours trying to figure out some of these strange problems.
 
YouTube just got one of my customers to destroy his governor. Not going to attempt to fix as his wife has put her foot and no more repair bills. So its a new mower.
 
The worst one I had to deal with was a customer who had a gas cap seal crumbling into his fuel tank. Each time I would remove some of the small pieces out of the tank and get it running, he would immediately take the rider. He refused having the tank pulled and cleaned or at least having the fuel tank cap replaced.

It took him paying me three times in one mowing season to deal with this before he finally decided it needed to be resolved correctly.

Some people just refuse to listen to reason.
 
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