GL1200 FUEL PUMP RELAY - Page 2 - Steve Saunders Goldwing Forums

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post #11 of 22 (permalink) Old 03-29-2010, 12:38 PM
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OK, pulled out my Clymer, the white wire goes to the fuel pump. The back wire provides the power. The blue/yellow wire provides the pulse from the coils. Again, the case of the relay probably provides ground.

The black wire will have power to it as long as the key is on. The blue/yellow wire will supply the pulse that energies the relay. As the relay energizes the voltage on the black wire will be connected to the white wire providing voltage to the pump.

I'm not sure why the test you had was checking the white wire to ground. Maybe they were looking for the pulsing, but not the way I would have chose to check the operation. there is always more than one way to skin a cat though

03 Honda XR650L
84 GL1200 Aspencade

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post #12 of 22 (permalink) Old 03-29-2010, 12:53 PM Thread Starter
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ok, that makes sense. i didn't find any red herrings however there was can of bud and a flipflop lodged in the carb intake tube!

"the clock talks loud".
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post #13 of 22 (permalink) Old 03-29-2010, 01:00 PM
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That Bud's warm, get a cold one

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post #14 of 22 (permalink) Old 03-31-2010, 11:03 AM
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Having just replaced a relay for no reason I can tell you the factory manual tells you to jumper the white and black wires at the relay and the pump should run with the key on. Mine would not. Turns out the pump was bad but even with a new pump it would not show voltage to the pump with the key on.After several hours of head scratching I tried testing for power with the starter button depressed and low and behold I had power while cranking. The manual doesnt even mention that but made sense because the third wire to the relay is from the ignition module. Maybe this will help. Good luck.

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post #15 of 22 (permalink) Old 03-31-2010, 11:12 AM
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Yep- you only get power to the pump when cranking or if the engine is running. That caught me out in rural France when the bike stopped due to a pump failure. I was trying to trace the lack of power but with just the ignition on. When I put a live feed from the accesory fuse o/p to the pump it jumped into life- but probably because I disturbed it. 100 miles later it failed again!. Constant cleaning and fiddling with the points got me home and then I replaced the pump.....Steve

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post #16 of 22 (permalink) Old 03-31-2010, 11:32 AM
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The pump should pump 17oz per min. That's what I test first.

Steve


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post #17 of 22 (permalink) Old 03-31-2010, 11:55 AM Thread Starter
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it's easily doing that! thanks

"the clock talks loud".
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post #18 of 22 (permalink) Old 06-10-2010, 09:59 AM
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Hi Guys,
Been reading your posts on the fuel pump relay fore a 1984 1200 Aspencade. Can anyone tell me where the fuel pump relay actually is located so I can test it? I cannot find it for sure. We're out of town with a broke down bike
Thanks
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post #19 of 22 (permalink) Old 06-10-2010, 12:00 PM
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marcpoehner wrote:
Quote:
Hi Guys,
Been reading your posts on the fuel pump relay fore a 1984 1200 Aspencade. Can anyone tell me where the fuel pump relay actually is located so I can test it? I cannot find it for sure. We're out of town with a broke down bike
Thanks
remove the top compartment and the coils and you should see the relay


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03 Honda XR650L
84 GL1200 Aspencade

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post #20 of 22 (permalink) Old 06-10-2010, 12:21 PM
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Thank you
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