83 interstate, fuel or electrical?


Information and questions on GL1100 Goldwings (1980-1983)
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pulitjer
Posts: 22
Joined: Fri Nov 27, 2009 7:07 pm
Location: huber hgts, ohio
Motorcycle: 1983 gl1100i

83 interstate, fuel or electrical?

Postby pulitjer » Wed May 26, 2010 11:01 pm



carbs have been rebuilt, new spark plugs, air screws set at factory seeings but still has a miss. Pulled off a plug wire one at a time and cant tell any difference. Carbs have been synced, choke is opened all the way. I have ran it for quite some time and then pulled the plugs and they are all black and sooty like it is running rich on all four.Also checked for air leaks and have had some seafoam in the fuel. Any suggestions?? Thanks



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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: 83 interstate, fuel or electrical?

Postby WingAdmin » Thu May 27, 2010 2:18 pm

Black sooty plugs can indicate a rich mixture like you're guessing, but they can also indicate a weak spark. Were you having the missing problem before you rebuilt the carbs? If so, then you might want to have a look at the ignition system. If the missing started only when you rebuilt the carbs, I'd have a look at the mixture.

pulitjer
Posts: 22
Joined: Fri Nov 27, 2009 7:07 pm
Location: huber hgts, ohio
Motorcycle: 1983 gl1100i

Re: 83 interstate, fuel or electrical?

Postby pulitjer » Thu May 27, 2010 7:02 pm

I bought the bike and it, of course, sat for about 2 years, so it was only running on 2 cyls. the funny thing is that all four are doing the same thing?What is the factory air screw settings for a 83 interstate? maybe my manual is incorrect? If it is spark then both coils doing the same thing?What should I look for beyoud the coils to make them both do the same thing, and so on and so on? Thanks for the help thus far! I almost forgot to say the motor will not rev out of the miss at high rpms either.

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WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: 83 interstate, fuel or electrical?

Postby WingAdmin » Fri May 28, 2010 11:57 am

Could also be pulse generators, now that I think of it. I'm still leaning towards ignition rather than fuel/air.

rrmiller73
Posts: 42
Joined: Tue Nov 10, 2009 12:16 pm
Location: Mt. Juliet, TN
Motorcycle: 1984 GL1200 Aspencade

Re: 83 interstate, fuel or electrical?

Postby rrmiller73 » Fri May 28, 2010 8:52 pm

Check the cylinder compression. If its not good (120-150 psi) no amout of fuel or ignition work will make it better. My 1200 had a blown head gasket when I bought. The seller had tried al kinds of things with the carbs to get it to run right and had them all fouled up. If the compression is good then go back to fuel or ignition.

pulitjer
Posts: 22
Joined: Fri Nov 27, 2009 7:07 pm
Location: huber hgts, ohio
Motorcycle: 1983 gl1100i

Re: 83 interstate, fuel or electrical?

Postby pulitjer » Sun May 30, 2010 7:33 pm

first I checked the wire connectors and did the three yellow wires as needed.I did a compression test and all are ok. I then took the carbs back off and decided to take the top off the carbs. I then checked the upper slides and found that there was a small dent in the #3 cap that had the slide stuck in a manner that it was moving, in a binde,just a little bit, and was stuck open almost all the way.I pressed the little dent out as best i could and ploished out what was left. I hope it works . I guess we"ll see? It slides free and smooth. I will put the carbs back on and..............HOPE!!!

pulitjer
Posts: 22
Joined: Fri Nov 27, 2009 7:07 pm
Location: huber hgts, ohio
Motorcycle: 1983 gl1100i

Re: 83 interstate, fuel or electrical?

Postby pulitjer » Sun May 30, 2010 11:55 pm

well that got rid of the high end miss. I resynced the carbs and it still sounds like a constant slight low end miss. Now when I pull a plug wire one at a time it almost stalls when I pull #2,but just misses when I pull the other three and it still smells rich . Float level? air mixture? Any comment and thoughts are very much welcome!!! Ps. It kina of boggs when you open the throttle just a little.

rrmiller73
Posts: 42
Joined: Tue Nov 10, 2009 12:16 pm
Location: Mt. Juliet, TN
Motorcycle: 1984 GL1200 Aspencade

Re: 83 interstate, fuel or electrical?

Postby rrmiller73 » Mon May 31, 2010 8:22 am

Sounds like you are down to fuel sytem now. It took me 3 trys to get the carbs right on my 1200. I ended up replacing. Needle and seats, Idle meter rods, both high and low end jets, adjusting and synching several times. (and all the seals/orings) Your carbs I think are different than mine, however the same principals apply. The idle jets in mine have very small bleed holes in side that are nearly impossible to get cleaned out well. The idle side did not respond until I replaced them. If the bike is smooth 1800-2000 rpm and up your dealing with the idle side of the carbs. Learn as you go! Good Luck. Sabre Cycles have cheap carb kits but not everything in them fit as called out.

pulitjer
Posts: 22
Joined: Fri Nov 27, 2009 7:07 pm
Location: huber hgts, ohio
Motorcycle: 1983 gl1100i

Re: 83 interstate, fuel or electrical?

Postby pulitjer » Mon May 31, 2010 5:28 pm

Ok. So I pulled the carbs off again and put the old jets back in after I boiled them out and it STILL sounds the same. Ill try to sync the carbs again and see what happens , but I dont believe it will make a difference again. I wish I had another 1100 to listen to. I had a 84 I bought new but thats ben so long ago I dont recall how it sounded. Where to go with it next??

rrmiller73
Posts: 42
Joined: Tue Nov 10, 2009 12:16 pm
Location: Mt. Juliet, TN
Motorcycle: 1984 GL1200 Aspencade

Re: 83 interstate, fuel or electrical?

Postby rrmiller73 » Mon May 31, 2010 8:38 pm

Just guessing: Have you checked the air cut-off valve system? Sabre cycles has a FAQ about those and sells new diaphrams for them. I think they ussually make them run lean when they don't work though. Vacume leaks maybe? Timing belt off a tooth? Put a timing light on all the leads (one at a time) and see if it has smooth continuous flashing. You can check the timing of #1 and see what it's doing through the timing plug. See what cylinders you can adjust with synch screws and which ones don't change might be a clue if it's still carberation. Some time you just want to throw rocks at it. Give it a rest. Think it over a couple days and start in again. Get some local help if available.These things should just purr when they are right.




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