Fouling plugs


Information and questions on GL1100 Goldwings (1980-1983)
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Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Fouling plugs

Post by Cosmobiker » Sat Nov 18, 2017 9:32 am



Just bought a 1980 gl1100. Previous owner gave up and sold it. Carbs are supposed to be rebuildt with kit from Randakk. The bike starts but is popping and not idling nice. With clean plugs it will go for a couple of miles before it starts to act up. Got it home an checked the yellow plugs and the solenoid. Not good. But gives me hope for might get improvement.



Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
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Re: Fouling plugs

Post by Cosmobiker » Sat Nov 18, 2017 9:35 am






Cosmobiker
Posts: 33
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Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Sat Nov 18, 2017 9:37 am




Cosmobiker
Posts: 33
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Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Sat Nov 18, 2017 9:40 am

The main positive is in bad condition. Will replace this and clean up the rest. Maybe spark will improve.

Cosmobiker
Posts: 33
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Location: Ålesund, Norway
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Re: Fouling plugs

Post by Cosmobiker » Sun Nov 19, 2017 6:27 am

Found out nr. 1 is almost cold after idling and plug was vet. Tested the plug and there is spark. Nr. 3 is a bit varmer but plug is vet. Got spark. When idling the left side is popping. Thinking it is down to a few things now. Valves must be checked. Timing must be checked. If that is in order, i guess itmust be the valves. Compression is tested and is supposed to ne great. The bike starts at first crank. Can this be caused by to much gas?

Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 6:10 am

Is it possible to get too much gas into the cylinder so it doesnt fire, but only manages to pop?
Will check compression later today.

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 6:13 am

Found this under the airfiltercover.



Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 11:57 am

Comptest with plugs in place and full trotle is as follows:
1: 188psi
2: 182psi
3: 184psi
4: 179psi

The cylinder that is cold has the best compression.
Any thoughts anyone?

Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 3:47 pm

The bike starts easily with no choke and it is freezing outside. Running Rich?

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 5:58 pm

Inside of tank. Not good.



Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Mon Nov 20, 2017 5:59 pm

Inside of tank. Not good.





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DenverWinger
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Re: Fouling plugs

Post by DenverWinger » Tue Nov 21, 2017 12:12 am

A couple gallons of vinegar are your friends.
They say 98% of all Hardleys ever made are still on the road..... The other 2% made it home. :lol:
(I stole this from somebody on another GW site...) :roll:

Cosmobiker
Posts: 33
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Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Tue Nov 21, 2017 3:02 pm

Anyone tried lemon acid in gastank

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Wed Nov 22, 2017 6:03 pm

Today i synced the carburetors. First i found some old spark plugs from an cb1100fboldor i owned 10 years ago. The bike started much better with these.
Hooked up the gauges after the bike had been idling for some time. Took some time to get the hang of only adjusting carb 1 and 2 and using nr. 4 to even it out. I adjusted nr. 1 a lot. The popping disapeared and i heard it starting to fire on the right side. Earlier the bike would start at an Instant without choke engaged.Now i must twist the trottle to start it. It is idling fine on around 1000rpm.Took it for a test and it is now pop free but lack some power.
I was going to tear into belts and timing because the PO said that dealership had overhauled the carbs with kit from Randakk.
But there are to much o-rings left to this being a Complete overhaul.
And i have read that the idle jets on the 1980 are fixed and im starting to belive that they are clogged on this bike on 1 and 3.
Cyl. 1 is warm , but not hot, 3 is a bit hotter. There are less power in the exhaust on the right side.
I want to check the airmixture setting and check the tip of the skrew for damage against the seating.
Starting to be optimistic about digging into and getting to know the carbs.
I hate to rely on others to fix Things for me and Logic goes a long way.

Left over unused bits
Left over unused bits






The old plugs. dont think they are correct.
The old plugs. dont think they are correct.


Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Fri Nov 24, 2017 8:10 am












Cosmobiker
Posts: 33
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Re: Fouling plugs

Post by Cosmobiker » Fri Nov 24, 2017 8:12 am

Thinking of bying a ultrasound cleaner. The carbs had some deposits inside.

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Sat Dec 02, 2017 5:20 pm

Started ultrasonic cleaning. It takes the gunk away. Found airmix screws out 3 whole turns. 1 and 3 are now in the rinse. On nr 3, i found the o ring on top of the washer under the airmix screw. The piston was black from the popping. I got a used carb set in tje mail. So i can use for parts and guidance. New plugs, wires and caps are bought. New belts are ordered. Nive winter tinkering.😊

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Sat Dec 02, 2017 5:25 pm






Good Hondog
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Location: Calgary, Alberta, Canada
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Re: Fouling plugs

Post by Good Hondog » Sat Dec 02, 2017 5:29 pm

Good job. Hopefully you'll get it running great again.

Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
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Re: Fouling plugs

Post by Cosmobiker » Sat Dec 02, 2017 8:08 pm

Pretty clean.







Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Sun Dec 03, 2017 1:46 pm

As Im now reading about all things to be aware of during reassebly, can anyone tell what effect it will have that the airmix was 3 turns out and not 1 1/4 as described in manual. And what will happen when someone had put the washer in before the o-ring?
Then Im tinking about the contact surface between the carb body and the top. It was covered with sticky gas deposit.what is sealing this?

Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
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Re: Fouling plugs

Post by Cosmobiker » Sun Dec 03, 2017 5:02 pm

Reasembled the 1. Carb today. Good felling. But as I put in the float, I senced it was pivoting up in one corner. Put it on the bench and it is warped.

Cosmobiker
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Re: Fouling plugs

Post by Cosmobiker » Sun Dec 03, 2017 6:21 pm

Starting to hope that the problems with the bike now will go away with corectly adjusted floats. I have donor carbs ariving this week in the mail. Hoping I find one there that is straight. It realy was nice to put one back together. Adjusting float heights I will save for last so I can set them with the whole rack on the side.







The right one is bendt
The right one is bendt


Cosmobiker
Posts: 33
Joined: Sat Nov 18, 2017 8:28 am
Location: Ålesund, Norway
Motorcycle: 1980 gl1100

Re: Fouling plugs

Post by Cosmobiker » Mon Dec 04, 2017 2:33 am

Tilted the carbs 1 and 3 on the side so the floats were reading against nede. Reading for nr. 1: 17,8mm and 16mm on the other side.
Nr. 3: 17,8mm. So I think the se carbs had a lot of air and very litle gas. Both cyl wasnt getting real hot and the exhaust didnt puff with same power as the other side. The PO sendt it to shop for changing starter and bought Randakk kit for carb overhaul. And I think the Shop messed up the bike. He rode it from Germany to Norway when he imported it. Started to clean carb nr. 3.

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Maz
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Re: Fouling plugs

Post by Maz » Mon Dec 04, 2017 3:03 am

Cosmobiker wrote:
Sun Dec 03, 2017 6:21 pm
Starting to hope that the problems with the bike now will go away with corectly adjusted floats. I have donor carbs ariving this week in the mail. Hoping I find one there that is straight. It realy was nice to put one back together. Adjusting float heights I will save for last so I can set them with the whole rack on the side.2017-12-03 21.58.59.jpg2017-12-03 21.59.04.jpg2017-12-03 22.18.57.jpg2017-12-03 22.25.04.jpg
The floats can be (and must be) bent back in line. There is a guide on Randakks site showing how they should look, but, basically, just gently bend the metal to get both halves of the float parrallel, then just bend the little 'tang' gently to get the correct height, which should be the same all around the float. Keep gently adjusting until heights are correct and floats are level and parrallel.

Maz


Nostalgia is not what it used to be!

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