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No fuel to Briggs Toro 20065 mower

#1

J

juntjoo

Should I get enough fuel digging in there from a few pulls of the rope?

It starts with carb cleaner but won't keep going and I'm not able to get a Q-tip wet.

I gave it a quick cleaning, used a wire in all the holes I could poke and cleaned the bowl and the needle jet which I assume works since it's not overflowing into the carb throat right?

I confirmed I got fuel to the bowl.

What would be the most likely culprit here blocking fuel to carb throat? Also I just installed a new primer bulb and I can't pull anything but air from it. Not sure what that means

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#2

I

ILENGINE

The primer on that engine pushes air into the float bowl, that in turn pushes fuel up into the throat of the carb to prime. If the gasket between the carb and air cleaner backing plate isn't sealing it won't prime. Also did you clean the holes in the fuel bowl nut because that is the jet to allow fuel to prime and to run.


#3

J

juntjoo

The primer on that engine pushes air into the float bowl, that in turn pushes fuel up into the throat of the carb to prime. If the gasket between the carb and air cleaner backing plate isn't sealing it won't prime. Also did you clean the holes in the fuel bowl nut because that is the jet to allow fuel to prime and to run.
Okay, found the gasket, just poked some holes, will try again , BRB ...


#4

J

juntjoo

The primer on that engine pushes air into the float bowl, that in turn pushes fuel up into the throat of the carb to prime. If the gasket between the carb and air cleaner backing plate isn't sealing it won't prime. Also did you clean the holes in the fuel bowl nut because that is the jet to allow fuel to prime and to run.
Okay, good it to run with carb cleaner, and it stayed running long enough to mow the lawn. Can't complain. I'm guessing the gasket helped though I didn't notice it work. I'll try to update next time after I see if it'll start without carb spray. Thanks


#5

StarTech

StarTech

Well that needle seat does looks swollen so it should be replaced as it will cause problems.


#6

M

MowerNick

Yup swollen red seat. Floats probably not level id assume.


#7

J

juntjoo

Yup swollen red seat. Floats probably not level id assume.
So it would be too low and not providing enough fuel? Would you then expect a dry spark plug? I'll check next time. Seems to run well. Bogs down under heavy grass but maybe that'd normal. I'll check plug next time...


#8

M

MowerNick

Your float should sit level with the carb body. I believe the needle and seat kit is a 398188 im pretty sure. The kits only like 5 bucks


#9

J

juntjoo

Your float should sit level with the carb body. I believe the needle and seat kit is a 398188 im pretty sure. The kits only like 5 bucks
Cool, thanks. I'll jot that down. I wouldn't have imagined they sell just those. Figured you'd just buy the kits. I actually have like three lol for each piece of equipment cuz I can never figure out how to fix them. I'm gonna guess $5=$10 really with shipping. $5 will get you a pen from China in 6 weeks earliest


#10

J

juntjoo

The primer on that engine pushes air into the float bowl, that in turn pushes fuel up into the throat of the carb to prime. If the gasket between the carb and air cleaner backing plate isn't sealing it won't prime. Also did you clean the holes in the fuel bowl nut because that is the jet to allow fuel to prime and to run.
So if I could stick my pinky in there with one hand and pump the primer with the other I should be able to wet my finger lol? Serious question


#11

I

ILENGINE

So if I could stick my pinky in there with one hand and pump the primer with the other I should be able to wet my finger lol? Serious question
I normally just look into the carb throat and when pushing the primer you should see the gas squirt up through the nozzle


#12

J

juntjoo

I normally just look into the carb throat and when pushing the primer you should see the gas squirt up through the nozzle
Oh okay, so it should be obvious. Yeah, not getting that. Thanks


#13

StarTech

StarTech

124T02-0161-B1

Then the air clean base to carburetor is not sealing. Usually caused the air base warping from heat and age or by over tightening the mounting screws. Get at least two air cleaner gaskets. Install one and then take the air cleaner base back, remove gasket for inspection. Look at the contact impression area. Using the second gasket cut a wedge gasket to apply more pressure to the non contact area. Some wood glue helps keep the two gasket together while you reassemble. Now lightly tighten the mounting screws until fuel shooting up from the nozzle as you press the primer.

Or at least that is how I repair these. Or you install a new air cleaner base.


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