1993 GL1500SE Fuel Pouring - Steve Saunders Goldwing Forums

 
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post #1 of 7 (permalink) Old 01-12-2016, 12:59 PM Thread Starter
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1993 GL1500SE Fuel Pouring

i am working on a 1993 gl1500se. once you start this bike it will puor fuel out of the overflow tubes. i have removed carbs and cleaned. still leaked. i removed again and installed carb kit. still leaked. replaced carb and still leaking. i have checked fuel flow and i have a flow of 2400cc per min. book just says min of 640cc per min. i am looking for any help. i normally work on v-twin and have never run accross a fuel leak i cant stop. but i am stumped. FYI every time carbs wre removed they were cleaned in a sonic cleaner.
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post #2 of 7 (permalink) Old 01-12-2016, 03:13 PM
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Check fuel pump pressure, normal for the 1500 is 1.5 psi.

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post #3 of 7 (permalink) Old 01-12-2016, 03:17 PM Thread Starter
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i do not have a pressure tester that low
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post #4 of 7 (permalink) Old 01-12-2016, 03:20 PM Thread Starter
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i do know the pressure is less then 5lbs. that is where my tester starts and it did not move the needle
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post #5 of 7 (permalink) Old 01-12-2016, 03:58 PM
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Only a few things that will cause fuel to dump outta the overflow:
  1. Float level set too high
  2. Damaged or incorrect needle/seats not allowing proper sealing when the floats are up
  3. Too high of a fuel pressure (overcoming the normally adequate sealing of needle/seat)
  4. Fuel is actually coming out of the bowl drains and not the overflow (sometime folks forget to close the bowl drains and confuse the fuel source)
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post #6 of 7 (permalink) Old 01-12-2016, 10:45 PM
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Quote:
Originally Posted by satan View Post
Only a few things that will cause fuel to dump outta the overflow:
  1. Float level set too high
  2. Damaged or incorrect needle/seats not allowing proper sealing when the floats are up
  3. Too high of a fuel pressure (overcoming the normally adequate sealing of needle/seat)
  4. Fuel is actually coming out of the bowl drains and not the overflow (sometime folks forget to close the bowl drains and confuse the fuel source)
5. Something not assembled correctly, or debris stuck in needle and seat area.

Mike

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post #7 of 7 (permalink) Old 01-16-2016, 03:00 PM
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I honestly think the 'high pressure' diagnosis is bogus. The area involved where the valve sits is so small that the force trying to push the valve open is miniscule. Dirt on the seats however.......

Terry

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