Air in Fuel System FL2

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Scaz93

Member
Posts
60
Location
Uk
Hi everyone
My 2013 FL2 is a bit spluttery on start up in the morning, but not at any other time of day.
I've checked the fuel line first thing in the morning upon start up and it has air bubbles floating through.
Much worse when cold, as expected with the fuel being thicker.
Any ideas on a simple fix?
Thanks very much!
 
Air in the fuel line is generally a sign that the O rings in the quick connectors aren't sealing tight.
The only way I've found to get the correct O rings is to get new quick contacts and pinch the O rings out of them. Not ideal, but it's worked for me. Oh and sometimes aftermarket fuel filters allow air in through the factory connector, as well as hot running issues very hot. The only way to eliminate filter issues is to only use Genuine LR filters, or OE filters marked with the Purflux name.

The other cause of spluttering when left overnight is an injector draining down. This is sometimes accompanied by smoke from the exhaust when it fires up.
 
Nodge68 said:
Air in the fuel line is generally a sign that the O rings in the quick connectors aren't sealing tight.
The only way I've found to get the correct O rings is to get new quick contacts and pinch the O rings out of them. Not ideal, but it's worked for me. Oh and sometimes aftermarket fuel filters allow air in through the factory connector, as well as hot running issues very hot. The only way to eliminate filter issues is to only use Genuine LR filters, or OE filters marked with the Purflux name.

The other cause of spluttering when left overnight is an injector draining down. This is sometimes accompanied by smoke from the exhaust when it fires up.
Click to expand...
Thanks Nodge, Ive got a genuine LR filter on there, so will try the O-Rings.
How would I go about sorting the injector drain back, as that sounds possible
 
Scaz93 said:
Thanks Nodge, Ive got a genuine LR filter on there, so will try the O-Rings.
How would I go about sorting the injector drain back, as that sounds possible
Click to expand...
Finding a leaking injector isn't easy. I've one that is misbehaving randomly on mine, but I've yet to identify which one it is.
 
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