Echo 2511 won't run, fueling issue possibly

[bmp01]

Just incase we're not all on the same page. ....

The purge bulb pulls fuel into the carb and no further. You'll not see fuel in the engine until you pull the engine over.

 

But if you can see fuel returning to tank as you press the purge bulb then you have fuel in the carb and in the right place, ie the metering side of the carb (assuming pipes are correct). Turning engine over with the choke on will get fuel into the cylinder, most likely too much fuel even if there is an air Ieak. Impulse line wont have much effect at this stage, thats only after its up and running. If the plug gets properly wet youve flooded it, dry the plug, pull engine over with plug still out etc.

 

I'd go for 1/2 a teaspoon of fuel down the plug hole, plug back in, choke off and see if it will cough. Repeat. If it coughs or runs at all,  its 99% certain a fuelling issue.

 

 

[adw]

1 hour ago, bmp01 said:

Just incase we're not all on the same page. ....

The purge bulb pulls fuel into the carb and no further. You'll not see fuel in the engine until you pull the engine over.

 

But if you can see fuel returning to tank as you press the purge bulb then you have fuel in the carb and in the right place, ie the metering side of the carb (assuming pipes are correct). Turning engine over with the choke on will get fuel into the cylinder, most likely too much fuel even if there is an air Ieak. Impulse line wont have much effect at this stage, thats only after its up and running. If the plug gets properly wet youve flooded it, dry the plug, pull engine over with plug still out etc.

 

I'd go for 1/2 a teaspoon of fuel down the plug hole, plug back in, choke off and see if it will cough. Repeat. If it coughs or runs at all,  its 99% certain a fuelling issue.

 

 

Sorry my friend some of these statements are  confusing and not correct.

[bmp01]

Just incase we're not all on the same page. ....

The purge bulb pulls fuel into the carb only. You'll not see fuel in the engine until you pull the engine over.

 

So whats next...

If you can see fuel returning to tank as you press the purge bulb then you have fuel in the carb and in the right place, ie the metering side of the carb (assuming pipes are correct).Turning engine over with the choke on at this stage will then get fuel into the cylinder. Most likely too much fuel even if there is an air Ieak. Impulse line wont have much effect at this stage, thats only useful after engine is up and running.

If the plug gets properly wet you’ve flooded it, dry the plug, pull engine over with plug out etc.

 

I'd go for 1/2 a teaspoon of fuel down the plug hole, plug back in, choke off and see if it will cough. Repeat. If it coughs or runs at all,  its 99% certain a fuelling issue.

 

Amendment to my post up the page, shown in Italics, play spot the difference

adw - ok now? 

Edited February 5, 2023 by bmp01
misc

[adw]

Did not mean to offend, just to say I though it confusing, however having read it a few times more it does make sense, hope we are not going to fall out over it.

[spudulike]

It is alright, I will still be your friend

[adw]

Oh Steve I am welling up.

[openspaceman]

2 hours ago, adw said:

Did not mean to offend, just to say I though it confusing, however having read it a few times more it does make sense, hope we are not going to fall out over it.

So pleased that is sorted as I understood @bmp01 and his understanding of engines has  sorted one I couldn't fix and you have been more than helpful to me on more than one occasion so I respect both of you.

[bmp01]

18 hours ago, adw said:

Did not mean to offend, just to say I though it confusing, however having read it a few times more it does make sense, hope we are not going to fall out over it.

Blimey, this thread has taken a weird turn along the way.... 

 

We're good. 

You know the way it is,  stuff that makes sense in yer head doesn't always make it onto the page in the most comprehensible fashioned. Out of respect for yourself and other readers thought it best to make it clearer...ish.

 

Wonder if OP has fixed his saw ? Probably wondering what the heck he has wandered into.....

 

[john87]

On 01/02/2023 at 20:33, adw said:

Spud is quite correct ref the flow of the fuel, you have to remember it’s a purge, not a primer, put round the wrong way and a couple of pumps will flood the engine, note the two pipes on the purge bulb, the short connection will be the suction side so goes to the metering side of the carb, the longer connection is the pressure side goes back to the tank, the fuel hose from the tank goes to the the pump side of the carb, then as Spud said the fuel is pulled from the tank to the purge bulb via the carb, and from the bulb back the the tank, this allows you to pump as much as you like without flooding the engine.

c

Are all saws etc like that?? I mean, the primer pulls the fule THROUGH the carb, and not stuffs it IN i mean. I have never had one to bits to see??

 

john..

[adw]

3 hours ago, john87 said:

Are all saws etc like that?? I mean, the primer pulls the fule THROUGH the carb, and not stuffs it IN i mean. I have never had one to bits to see??

 

john..

Yes it’s a purge not a primer, so 99% of saws, brush cutters, hedge trimmers etc are like this, there used to be odd saws etc that were primers the original Husqvarna 3120xp for instance.