IGNITION ISSUES MY FIRST POST!


Information and questions on GL1500 Goldwings (1988-2000)
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WALTSTAR
Posts: 4
Joined: Wed Oct 24, 2018 7:19 pm
Location: NEW YORK NEW YORK
Motorcycle: 1988 GL1500

IGNITION ISSUES MY FIRST POST!

Post by WALTSTAR » Wed Oct 24, 2018 7:50 pm




Hello all! I have a 1988 Goldwing that I unfortunately, dont get to ride as much as I would like. It has 43,000 miles on it with the upgraded alternator. Last year when I parked it, it ran fine. This summer I found a miss and locked up brakes when I started it up and tried to move it. I rebuilt the brake calipers and installed new ignition wires and plugs. While in there, I tightened up the carb boots and checked for vacume leaks, but did not find any. She runs great above 1000 rpm, but has a big flat spot off idle and the idle hunts. If I have the idle speed screw turned all the way down, it smooths out, but is not perfect and the flat spot remains.
What are the possibilities and most likely cause?

Thanking you in advance,
Waltstar



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Aussie81Interstate
Posts: 1021
Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 2001 GL1500F6C Valkyrie
1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500 (sold)

Re: IGNITION ISSUES MY FIRST POST!

Post by Aussie81Interstate » Wed Oct 24, 2018 9:35 pm

Accelerator pump needs to be cleaned - and the small jets need to be cleaned out..probably clogged or obstructed with old fuel deposits.

I believe you can use SEAFOAM to maybe assist in clearing this issue.

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WALTSTAR
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Joined: Wed Oct 24, 2018 7:19 pm
Location: NEW YORK NEW YORK
Motorcycle: 1988 GL1500

Re: IGNITION ISSUES MY FIRST POST!

Post by WALTSTAR » Thu Oct 25, 2018 5:04 am

Thank you for the quick response. When I had the air cleaner housing and radiators out, I used Gumout on the jets I could see. i also did put a can of Seafoam in the tank, but have only driven the bike about 15 miles since then. Perhaps I havent worked the Seafoam through the system long enough?

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AZgl1800
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Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800

Re: IGNITION ISSUES MY FIRST POST!

Post by AZgl1800 » Thu Oct 25, 2018 7:24 am

I have bought two 1500s, and both of them had clogged slow idle speed passages.

I poured in full can of Sea Foam to a full tank of gas.
yeah, way over the normal suggested strength...

but, what I did next is not normal.

put the bike up on the Center Stand, and kept moving the idle down as slow as it would run, and left it idling for way over an hour..... did this about 3 nights running.... when I parked at a hotel for the end of the day. I watched to be sure the Fans were cycling properly and the water temp never got over normal for the condition.... roughly about 2/3rds scale IIRC.... this was back in 2010

I bought the last bike in Tampa, FL and was headed west to Arizona where I lived at the time.

by the time I got home, 3 weeks later, the problems were gone.

the next day, I just rode that tank of fuel out, and when I stopped for the next evening, in went another can of SeaFoam. the stuff is cheap IMO for what it does.

on the 4th or 5th day, I poured in a 1/2 can for each fillup.... by the time I got home, about 4,000 miles has been logged, and the engine was running perfect, smooth idle like it should at 800-900 rpm
~John

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WingAdmin
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Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
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Re: IGNITION ISSUES MY FIRST POST!

Post by WingAdmin » Thu Oct 25, 2018 8:42 pm

AZgl1800 wrote:
Thu Oct 25, 2018 7:24 am
I put the bike up on the Center Stand, and kept moving the idle down as slow as it would run, and left it idling for way over an hour..... did this about 3 nights running.... when I parked at a hotel for the end of the day. I watched to be sure the Fans were cycling properly and the water temp never got over normal for the condition.... roughly about 2/3rds scale IIRC.... this was back in 2010
Any time I am running the bike at idle for a long time like this (for heating up the coolant after a flush, etc.) I will put a box fan in front of the bike, to move some air over it and help keep the bike from overheating.



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