Priming Fuel Injection System

Reply Subscribe

Thread Tools

Search this Thread

Apr 25, 2013 | 12:00 AM

dahulk

Thread Starter

Stage I

Joined: Apr 2013

Posts: 1

Likes: 0

From: Anchorage

Priming Fuel Injection System

I have a 2010 CVO Ultra (FLHTCUSE5). I recently had the bike disassembled for paint... the bike is back together but it won't start.

The fuel tank was drained, the pump primes but doesn't appear to get fuel to the injection system.

Is there a quick way to prime the injectors? or check that they're getting fuel?

Thanks
HULK

Apr 25, 2013 | 10:09 AM

Bingee

Outstanding HDF Member

Joined: Dec 2008

Posts: 2,007

Likes: 353

From: Ohio

I very seriously doubt you have a "priming" problem. The pump would run and run until it built up pressure. You say it won't start. That's not much help. What EXACTLY does it do and not do? You might even take it back to whoever did the work. Something seems unconnected.

Apr 25, 2013 | 10:26 AM

07RoadHawg

Road Warrior

Joined: Jun 2007

Posts: 1,788

Likes: 4

From: Here

Dumb things first... The fuel line is connected (on both ends) from the tank to the fuel rail, right? Been there before myself I'm sad to say.

Apr 25, 2013 | 12:27 PM

mrfuji

Cruiser

Joined: Oct 2010

Posts: 215

Likes: 0

From: quebec canada

priming

hi . remove 1 spark plug. put some gas in the hole screw plug back.engine will start and remove the air in tube.or remove air filter spray some gas in it .mrfuji

Aug 12, 2025 | 02:53 PM

ScrapDawg

Stage I

Joined: Aug 2025

Posts: 1

Likes: 0

From: California

Priming Fuel injector

Quote:

Originally Posted by mrfuji

hi . remove 1 spark plug. put some gas in the hole screw plug back.engine will start and remove the air in tube.or remove air filter spray some gas in it .mrfuji

@Mrfuji, will this work for sure? I just replaced o-rings in quick disconnect, did it correctly but now my 2005 Softail acts like its not getting any gas. And i have gas flow from tank thru fuel line. But might have an air pocket from there.

Aug 12, 2025 | 03:18 PM

NorthWestern

Club Member

Joined: Apr 2016

Posts: 11,458

Likes: 8,288

From: Inland NW

Quote:

Originally Posted by ScrapDawg

That guy has not logged in for 12 years. I doubt he will see this.

Aug 13, 2025 | 11:07 AM

Jake707

Road Master

Joined: May 2018

Posts: 778

Likes: 178

From: Bay Area

Quote:

Originally Posted by ScrapDawg

If you have gas flow from the tank through the fuel line (how did you verify this) theres no where to have an air pocket other than the injectors and with the electric fuel pump supplying pressure, cranking it over a couple times would have pushed any air out. Its a lot easier to verify you have spark before thinking you have a fuel supply issue.