Husky 435 wont keep runnin

[saxon]

What is the reason that I can get it to fire off and run for 5 seconds, then it dies?
I put in a new primer bulb, old one cracked. I set the L & H to 1 1/4 turns out.
its whoopin me

 

[Bob Hedgecutter]

Take the muffler off, slowly rotate the engine by hand (flywheel or rope) until you can see the piston through the exhaust port- what does the piston look like?
Even better- post a photo of the piston viewed through the exhaust port.

 

[ray benson]

What is the reason that I can get it to fire off and run for 5 seconds, then it dies?
I put in a new primer bulb, old one cracked. I set the L & H to 1 1/4 turns out.
its whoopin me

Carb initial carb settings is 2 1/2 Low
2 High

 

[saxon]

I did view it thru the spark plug hole and the top of the piston had carbon build up

 

[saxon]

OK maybe my carb settins are off. Somewhere I thought I read 1 1/4

 

[mbrick]

I did view it thru the spark plug hole and the top of the piston had carbon build up

He's asking you to check the cylinder wall and side of the piston for scoring. Can't see that from the top.

Carbon on top of the piston is normal.

 

[dboyd351]

good chance you routed the fuel lines on the primer bulb wrong
try reversing them

 

[cookies]

replace the tygon fuel hoses, fuel filter and carb diaphragms. Once the bulb goes bad to the point it leaks trash will enter the carb and the lines and carb guts are likely old and hardened not just the bulb.

 

[saxon]

I made sure about the fuel lines connection, good idea though.
So if I see some scoring on the piston walls, then what?

 

[Bob Hedgecutter]

I made sure about the fuel lines connection, good idea though.
So if I see some scoring on the piston walls, then what?

If you see scoring on the piston- its running too lean- too lean fuel mix, air leak, or straight gas.
Simply pull the muffler and take a photo of the piston through the exhaust port and post it here- that will tell the story much better than words ever will and confirm or deny other possible issues.

 

[saxon]

I would have done that already if I knew how, to upload it anyway.
And I was just now workin on it and backed og the L&H to 2 turns out and it ran better but when I tried to squeeeze the trigger it died.
And for some reson the muffler housing was wet with fuel??

 

[Bob Hedgecutter]

Use the "attach files" feature- bottom left of the reply box.

 

[saxon]

Is these readable?

 

[cookies]

piston/cylinder look fine
H needle starting point is 2 turns out L needle is 2.5 turns out
check your hose placement
https://prnt.sc/zikVW4Q2hE_R

 

[Bob Hedgecutter]

Is these readable?

Yep, that helps- front of the piston looks okay- back wall of the cylinder might have some "marks" up and down from possible debris through the intake tract- but those photos are a bit blurred- so might be nothing.
So the good news from that is, you have not been running lean long enough to burn up the piston and wreck the top end.

The fuel residue will likely be from many multiple rope pulls in an effort to start it flooding its way through.

 

[irhunter]

What is the reason that I can get it to fire off and run for 5 seconds, then it dies?
I put in a new primer bulb, old one cracked. I set the L & H to 1 1/4 turns out.
its whoopin me

Do you have the shop manual for the saw?

 

[Tomos770]

Does shaft on the clutch side has some play?

If you are not sharpening its chain enough.....clutch side bearing become real hot (due to constant higher rpms).....and eats away plastic chasis part....and there you get an air leak...

 

[Tomos770]

@0:41.....

 

[mottofreee]

Nu functioneaza subtitrarile YT iar marea majoritatea nu stiu slovena .

 

[Tomos770]

Majority doesnt understand Romanian either....

Point is in the (moving) picture(s)

Where husqvarnas plastic 4xx clamshelfs have a problem.....and how he resolved that....

Althoug as he claims in this video.....that is just a temorary fix....because customer was nagging him that he wants that saw fixed no matter what....

AND.....btw....that guy is Serbian.....he is not speaking in Slovene