GL1500 Ran, Rode, Stopped and will not start again - Page 4 - Steve Saunders Goldwing Forums

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post #31 of 33 (permalink) Old 07-03-2019, 03:33 PM Thread Starter
Junior Member
Join Date: Jan 2012
Location: Brookline, New Hampshire, USA
Year: 1990
Make: Honda
Model: GL1500
Posts: 16
Thank you Rick, I am going to do the pressure test on the pump first and see what the outcome is.
I do know that with the new transistor the pump worked, engine fired and ran, it wasn't until i shut it off and tried to restart it that the pump stopped getting power.

I am afraid i will fry your ECU
I will keep the group posted/

Small steps will eventually lead to success, i can feel it.
Thank you
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post #32 of 33 (permalink) Old 07-14-2019, 12:57 PM Thread Starter
Junior Member
Join Date: Jan 2012
Location: Brookline, New Hampshire, USA
Year: 1990
Make: Honda
Model: GL1500
Posts: 16
Final disposition on the problem.
Thank you all for the great advice and direction, we have resurrected my wing and she flies again.

At the end of the day, it looked like the transistor was indeed the problem. Once it was replaced and the Yellow wiring harness was securely attached to the ECM, the engine started and continues to run well. I am reassembling the bike today and using my memory I have been successful thus far, still a few pieces to go and I will take it out for a test ride.
Post #3 was the answer.
Thank you again, Dave

Thanks to all who participated, I learned a lot through this adventure
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post #33 of 33 (permalink) Old 07-14-2019, 01:42 PM
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Join Date: Nov 2007
Location: Amity, Arkansas, USA
Model: 2010 GL1800
Posts: 24,101
I think if it were mine I would consider adding a relay to the circuit and use the ECU feed to operate the relay instead of running the pump directly. I know the failure rate of those transistors is low but there are enough failures for it to be a concern.
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