Carb adjustment problems.


Information and questions on GL1000 Goldwings (1975-1979)
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dale4047
Posts: 2
Joined: Thu Jul 14, 2011 6:02 pm
Motorcycle: 1978 gl 1000 goldwing

Carb adjustment problems.

Postby dale4047 » Sun Sep 18, 2011 4:52 pm



First of all I am a new Goldwing owner and am enjoying the challenge of trying to restor this wonderful bike back to health. I purchased a 1978 GL 1000 that had not been run in a couple years. I have run sea foam through the carbs and got the bike running alot better but feel that I may need to rebuild the carbs to resolve the issues I am having. Here is a brief description of what is happening. I sinked the carbs per the service manual and tried to set the adjustment screws like the manual says by turning the screws in till the motor looses 100 rpm then backing them out 3/4 of a turn but carbs 2 and 4 will not drop rpms even with the screws turned all the way in so i only turned them out 3/4 from bottom. At this setting the bike seems to be running rich and pops through the right exhaust at idle. Also when you are riding at speed and let off the throttle it pops through the exaust. To try to resolve the issue I have tuned all 4 screws in aprox. 1/2 a turn and still have good power and on trips am getting 41 mpg but it doesnt seem to run as smooth at idle. Any suggestions would be appreciated.

Thanks Dale



User avatar
Fred Camper
Posts: 1152
Joined: Sun Aug 16, 2009 9:15 pm
Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Carb adjustment problems.

Postby Fred Camper » Sun Sep 18, 2011 5:56 pm

Sounds to me like you may need to rebuild the carbs, but there is more to try first. I have hear good results from using Berryman B-12 Chemtool® Carburetor, Fuel System and Injector Cleaner. Some say it works much better than SeaFoam but no personal experience myself.

dale4047
Posts: 2
Joined: Thu Jul 14, 2011 6:02 pm
Motorcycle: 1978 gl 1000 goldwing

Re: Carb adjustment problems.

Postby dale4047 » Sun Sep 18, 2011 6:30 pm

thanks I will see about the Berryman B-12 cleaner.


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