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General Category => General Discussion => Topic started by: JimRob on October 14, 2015, 08:09:13 AM

Title: Jackal fuel pump won't run after filter change
Post by: JimRob on October 14, 2015, 08:09:13 AM

I replaced the fuel filter and cleaned the K&N air filter on my 2000 Jackal, and after reassembly, the fuel pump is not turning on when I turn on the ignition. The furthest right mini-relay clicks twice (on & off?) but no fuel pump action. I checked basic stuff: fuel filter in correction direction, the kill switch was on, no blown fuses and everything else electrical appears to work: starter motor, lights, horn etc. Thought maybe I'd switched the fuel tank solenoid and fuel level sensor wires when I reinstalled the tank, but I could hear fuel draining to the filter when the switch was first turned on. Any suggestions on what to check next or what I may have done to disable the fuel pump? 

Title: Re: Jackal fuel pump won't run after filter change
Post by: oldbike54 on October 14, 2015, 08:17:46 AM

 The very first thing to check is power to the pump its self .

  Dusty

Title: Re: Jackal fuel pump won't run after filter change
Post by: Chuck in Indiana on October 14, 2015, 08:34:20 AM

What Dusty says.
Here's the schematic..
http://www.thisoldtractor.com/guzzi007/schematics/2000_Jackal.gif
Check fuse F6 and relay 50

Title: Re: Jackal fuel pump won't run after filter change
Post by: fotoguzzi on October 14, 2015, 08:56:46 AM

the pump wires plug into the main harness in the battery area, could it have come unplugged?

Title: Re: Jackal fuel pump won't run after filter change
Post by: Chuck in Indiana on October 14, 2015, 09:07:25 AM

Quote from: fotoguzzi on October 14, 2015, 08:56:46 AM

the pump wires plug into the main harness in the battery area, could it have come unplugged?

It's generally something simple.

Quote

Thought maybe I'd switched the fuel tank solenoid and fuel level sensor wires when

The pump will still run. It'll burn out that expensive sensor, though.. :smiley:

Title: Re: Jackal fuel pump won't run after filter change
Post by: Wayne Orwig on October 14, 2015, 09:21:57 AM

Do you get the loud 'clunk' of the fuel solenoid?

Title: Re: Jackal fuel pump won't run after filter change
Post by: JimRob on October 14, 2015, 05:45:35 PM

I found the problem. The plug connection to the fuel pump was pulled loose. Thanks for the tips.

Title: Re: Jackal fuel pump won't run after filter change
Post by: oldbike54 on October 14, 2015, 05:48:34 PM

Quote from: JimRob on October 14, 2015, 05:45:35 PM

I found the problem. The plug connection to the fuel pump was pulled loose. Thanks for the tips.

 Always always always look at the simple solution first . A lesson learned growing up on English motorbikes . That connector is not very good , no positive lock . Glad you located the problem  :thumb:

  Dusty

Title: Re: Jackal fuel pump won't run after filter change
Post by: Chuck in Indiana on October 14, 2015, 06:31:09 PM

Quote from: JimRob on October 14, 2015, 05:45:35 PM

I found the problem. The plug connection to the fuel pump was pulled loose. Thanks for the tips.

Thanks for the update. Probably time for a small donation to WG..  :wink: Your call of course. Without WG, there's no way I could have kept many of my Guzzis going.  :thumb:

Title: Re: Jackal fuel pump won't run after filter change
Post by: LowRyter on October 14, 2015, 07:38:00 PM

good going Jim Bob