Fuel line on wrap saws

[NPKenny]

Saws in question are 395XP and 272. I have rebuilt both from the ground up and am not certain on the correct fuel filter length and orientation.

I've been having a challenge when cutting clutch side up on these two saws... The fuel line seems to suck air almost immediately, unless the tank is absolutely topped off.

It seems like the fuel line falls to the bottom fine when the flywheel side is up, but doesn't stay properly submerged when cutting clutch side up. If I shorten the line, it doesn't appear to be properly submerged when in the bucking position.

Its all Echo bulk fuel line. What are the the tricks for helping the fuel line work in all positions?

 

[Maintenance Chief]

I'm not totally sure, but that might be why Husqvarna has that fuel line shaped like a cork screw . Maybe it acts like a spring?

 

[huskyboy]

Saws in question are 395XP and 272. I have rebuilt both from the ground up and am not certain on the correct fuel filter length and orientation.

I've been having a challenge when cutting clutch side up on these two saws... The fuel line seems to suck air almost immediately, unless the tank is absolutely topped off.

It seems like the fuel line falls to the bottom fine when the flywheel side is up, but doesn't stay properly submerged when cutting clutch side up. If I shorten the line, it doesn't appear to be properly submerged when in the bucking position.

Its all Echo bulk fuel line. What are the the tricks for helping the fuel line work in all positions?

You probably made it too long. I make it so the filter just touches the bottom of the tank. You want the filter to be able to move freely. Also don’t make it too long between the tank and carb housing. It will kink with the flex of the av.

 

[jacob j.]

What filters are you using - the OEM white Husky filters?

 

[NPKenny]

What filters are you using - the OEM white Husky filters?

Yes, white Husky filters on these saws.

 

[67L36Driver]

I’ve added a fat hex nut (1/4”-20) with the threads drilled out on some at the hose/filter joint to give the plastic filter extra weight. [emoji1696]

 

[Lightning Performance]

I'm seeing an issue with a Stihl 034. The fuel line OEM green is too long. It keeps the filter captured in the corner of the tank. If you shake it the filter comes loose. No real fix for that but to add a weighted filter or cut the line and swap to a Husky type. Going to try the weighted filter first and see if it flip flops around ok.

 

[trooney]

But, you cant make it too tight coming out of the fuel tank either..or the kinking occurs. Its got to have a just right curve to it or it will play some mean head games with you.

 

[Lightning Performance]

But, you cant make it too tight coming out of the fuel tank either..or the kinking occurs. Its got to have a just right curve to it or it will play some mean head games with you.

The AM fuel line by Cross for the line vented 200T setup is a bit too long on the vent side. It does kink a bit but this side is air not fuel so it might be ok. That stuff can be a nightmare with AV. You dig in and it just quits or runs lean.

 

[kneedeepinsaws]

I'm not totally sure, but that might be why Husqvarna has that fuel line shaped like a cork screw . Maybe it acts like a spring?

I am sure you are right cause I’m finding the same issue with regular fuel line myself.

I’ve added a fat hex nut (1/4”-20) with the threads drilled out on some at the hose/filter joint to give the plastic filter extra weight. [emoji1696]

this is a good idea and I have done it before as well, good post!!!