bubbles in fuel lines

[dirtbasher]

hi guys,
started it today n noticed bubbles in the tank and fuel line. i'm also using fuel filter. took out the fuel filter n connect direct, stil hav bubbles. i chk all fuel lines seems 2 b ok. anybody know why?

 

[frddyj]

mine has em until i fire it up, then the pressure blasts the fuel through

you notice the bubble just when the mill is off or when she's running too?

 

[SwampDawg]

you shouldnt have any bubbles while the truck is running what-so-ever.
if you do, then you have an airleak somewhere along the line.

Fuel tank cracked
Fuel line has a split
Backplate is loose/not sealed correctly
Airleak at carb neck or inlet
Carb O-rings are damaged
Main bearings at crankcase

some ideas of what you can look at to remedy this issue.

good luck

 

[dirtbasher]

mine has em until i fire it up, then the pressure blasts the fuel through

you notice the bubble just when the mill is off or when she's running too?

wen she's running

 

[dirtbasher]

you shouldnt have any bubbles while the truck is running what-so-ever.
if you do, then you have an airleak somewhere along the line.

Fuel tank cracked
Fuel line has a split
Backplate is loose/not sealed correctly
Airleak at carb neck or inlet
Carb O-rings are damaged
Main bearings at crankcase

some ideas of what you can look at to remedy this issue.

good luck

thx SwampDawg, wil chk on that...

 

[Wulf]

I would just completely replace the fuel line. It's like a dollar a foot at my LHS.