Odd behavior in the rain


Information and questions on GL1100 Goldwings (1980-1983)
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Wingsconsin
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Odd behavior in the rain

Postby Wingsconsin » Mon Jul 22, 2013 9:55 am



Yesterday the 1980 GL1100Interstate got caught in the rain.
It was parked in a pretty good downpour with no cover for like 2-3 hours . we got more than 1" of rain...
When it was started to come home it ran , put poorly, and eventually killed while driving down the main road at about 35 MPH.
After that it would not restart...Mutiple tries to get it to fire were unsuccessful..
We coverd 'er up..and waited for the rain to stop...
2 hours later the rain was gone and we tried to get it to start...
It would pop once of twice, but nver fire...we got an occasional backfire BANG through the mufflers, but it would not run...
As the evening wore on it would pop a few times , but not fire up..
So we got the trailer and brought it home - when we took it off the trailer we tried it one more time..and it caught...
But it would not idle...it ran at 3000 RPM's but not below 2000 RPM's..
We let it warm up to full operating temps and then shut it down for the night...
I had a fan blowing on it all night long thinking it was just really wet and needed to dry out...
This AM it fired right up, and after a brief warm up period it ran like it was running before the rainstorm...Just perfectly..
Even at idle it was even and strong....
:?: :? :?:
What do you think was going on..?
What should or could I do to be sure the bike won't quit in a rainstorm on us..? (Other than don't ride in the rain)
Any suggestions are appreciated...we have a trip planned for August and need this bike to be reliable...(it's my sons 'Wing)







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80-GL100-INT
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Re: Odd behavior in the rain

Postby 80-GL100-INT » Mon Jul 22, 2013 10:15 am

This sound like it's probably ignition related. possibly a crack in one of the coils, cracked plug, or a loose boot connector. A wire with some corrosion that got wet and gelled.

In the past I have taken the hose or water can and carefully soaked one particular area at a time until I can duplicate the issue, letting each area dry before moving to a different part. Just like trying to locate a water leak on a car.
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virgilmobile
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Re: Odd behavior in the rain

Postby virgilmobile » Mon Jul 22, 2013 11:19 am

I got a dime that says your drain holes are plugged up.
Pull both plug wires off,pour a cup of water right on the plugs.
It should drain out within a few seconds.If not,jiggle a small wire into the hole to clear it.Its between the plugs.

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Wilcoy02
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Re: Odd behavior in the rain

Postby Wilcoy02 » Mon Jul 22, 2013 11:31 am

The plug wires and boots ae what caused my bike to do what yours is doing. After I changed out the wires and plug boots I have not had the problem riding in the hardest rains.

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Wingsconsin
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Re: Odd behavior in the rain

Postby Wingsconsin » Mon Jul 22, 2013 1:45 pm

Some of the replies thus far were expected. And I appreciate the throughts greatly..

The live real time diagnosis effort last night caused me to suspect some of these things as well.
During the effort to get it re-fire last night I removed the plugs caps from the wells and looked for water. The were dry adn the holes appeared open.
It was drizzling to stopped raining and we went after the bike with towels over the much of the electics..
We wiped down the pugs wires adn caps and dryed them as much as poosible. I then sprayed them with WD40 in an effor to displace the water . We reached as far UP the wires as we could with the towels to dry them.

I suspect the coils...When we opened the shelter and removed the tool tray it had some standing water in the tray...
The air box was dry inside except the oil from the K&N filter system installed (damp).
I wonder if the shelter leaked while it was sitting int he pouring rain and soaked the coils and upper electroncis..?

Seem reasonable...? :?: :| :?

Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


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virgilmobile
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Re: Odd behavior in the rain

Postby virgilmobile » Mon Jul 22, 2013 2:39 pm

Did you happen to look in the bottom of the plunum,under the air filter.
In a downpour my 83 would funnel water from the shelter seams and deposit it on the top of the air cleaner box and flow right into the air box.I did have water seep past the filter and pooled in the bottom of the plenum.

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Wingsconsin
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Re: Odd behavior in the rain

Postby Wingsconsin » Mon Jul 22, 2013 3:02 pm

virgilmobile wrote:Did you happen to look in the bottom of the plunum,under the air filter.
In a downpour my 83 would funnel water from the shelter seams and deposit it on the top of the air cleaner box and flow right into the air box.I did have water seep past the filter and pooled in the bottom of the plenum.


I DID look under the filter and it was dry...the air filter cover must've been tight (as it should be) and kept the water out of the air box in general...(good) but the tool tray has some water in it...I am thinking the coils are up there as well and they must've gotten wet wet wet...
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


Motorcycle Adventure Storys writen by me
http://neverlost-justexploring.blogspot.com/

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Wingsconsin
Posts: 785
Joined: Tue Jul 10, 2012 1:47 pm
Location: Sussex, Wisconsin (West of Milwaukee)
Motorcycle: 2002 GL1800 - Pearl Orange
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1983 Suzuki GS850GL - Blue & Black
Contact:

Re: Odd behavior in the rain

Postby Wingsconsin » Mon Jul 22, 2013 3:06 pm

Honestly...When the 1100 is running right it is a great fun machine...I LIKE riding it... :D
But I seem to be chasing a lot of gremlins lately and it is gettin' a little frustrating.. :evil:
especially as I am trying to sell it and want who ever buys it to experience trouble free riding... 8-)
I DO care what people think about me and want no buyer to feel cheated... ;)
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


Motorcycle Adventure Storys writen by me
http://neverlost-justexploring.blogspot.com/

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SteveB123
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Re: Odd behavior in the rain

Postby SteveB123 » Mon Jul 22, 2013 5:52 pm

Well, how old ARE the plug wires? :D
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing

moritz1100
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Location: ireland
Motorcycle: 1980 GL1100

Re: Odd behavior in the rain

Postby moritz1100 » Tue Jul 23, 2013 3:38 am

Exact same thing happened to me on my trip to the Elefantentreffen in Germany earlier this year and left me stranded in the UK. It turned out to be a burned out CDI. Check and replace I reckon!

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Wingsconsin
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Joined: Tue Jul 10, 2012 1:47 pm
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Motorcycle: 2002 GL1800 - Pearl Orange
1996 GL1500 Aspencade - Pearl Blue
1992 GL1500 Aspencade -Candy Red
1983 Suzuki GS850GL - Blue & Black
Contact:

Re: Odd behavior in the rain

Postby Wingsconsin » Tue Jul 23, 2013 8:40 am

SteveB123 wrote:Well, how old ARE the plug wires? :D


....uhhh....the previous owner replaced them according to his records about 40,000 miles ago...
They look perfect and I have run my hands along them when the bike was running with no leaking electric that I felt..
I really believe the shelter leaked as it SAT in the downpour and the coils got wet....
But I have no proof....


moritz1100 wrote:Exact same thing happened to me on my trip to the Elefantentreffen in Germany earlier this year and left me stranded in the UK. It turned out to be a burned out CDI. Check and replace I reckon!


Once it dried out it ran fine (the next day) so I HOPE and doubt it is a bad cdi.... :?
Postings are my opinions based on experience and acquired knowledge.
Your results may vary. Universal disclaimers apply.


Motorcycle Adventure Storys writen by me
http://neverlost-justexploring.blogspot.com/

moritz1100
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Re: Odd behavior in the rain

Postby moritz1100 » Tue Jul 23, 2013 11:34 am

Yeah, I was sure it was coils too, they were fine though. My bike only had 33'000 on the clock when the CDI went.. The next morning when the bike was delivered to the mechanic she started right up but after a while started acting up again. The mechanic tested everything and it turned out to be a bad CDI, replaced it and it hasn't missed a beat since. He insisted the rain couldn't have affected it but I swear it got worse as the rain got worse and it didn't do it at all until it rained.. I've checked since and there's definitely no water leaking into the under tank area.

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ram11397
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Motorcycle: 1982 GL1100A Aspencade

Re: Odd behavior in the rain

Postby ram11397 » Tue Jul 23, 2013 1:51 pm

Hi,
I had the same problem and it was a hair line crack in the the spark plug cap.I replaced them and the boots as well and it as not happened since.

Rick


Rick
1982 GL 1100 Aspencade


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