bike not running right, so fustrated!!!


Information and questions on GL1200 Goldwings (1984-1987)
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mwparson
Posts: 2
Joined: Sun Sep 04, 2011 2:33 pm
Location: lovington new mexico
Motorcycle: 1987 gl 1200 i

bike not running right, so fustrated!!!

Postby mwparson » Mon Mar 25, 2013 11:23 am



Ok, im a newbie at trying to repair anything on my 84 GL1200 I. a while back i was driving it home from work and it just started to die on me. it acted liek it was fuel starved and got to the point where it wouldnt run at all. I would throttle down on it and it wouldnt even start. I could start it with the choke all the way on but then it woudl die if i tried the throttle. A friend told me to take the carbs off and just clean them. so i did that and put htme back on. Well now the bike will start but it wont stay running unless its fully throttled and the choke doesnt help either... should i just get Raddiks rebuild kit and just redo the whole carbs and then go from there? im wondering if i just got the carbs so out of sync they wont stay running. I know it needs to be synced but if i cant keep it running i dont want to waste my time taking it to someone to have them synced if i just have to rebuild them and do other work to the bike. Any ideas on what i can do? im just so fustrated. i live in the middle of nowhere and i have nobody close to even help me. Ill have to take it 100 miles to the closest shop just to do the sync on the bike. Thanks for any and all ideas and help.



johntrudeau
Posts: 3
Joined: Tue Dec 06, 2011 3:00 pm
Location: Melbourne, FL US
Motorcycle: 1985 Goldwing Limited

Re: bike not running right, so fustrated!!!

Postby johntrudeau » Mon Mar 25, 2013 12:01 pm

I own a '85 LTD with 22,000 miles and during warm weather as is in Florida 80's time.
The bike does the same thing you're talking about. It seems like something is heating
up and then limiting spark or fuel. The idle is running low and almost stalling but if it stales
it starts back up. Limits the RPM at 3,000. It's like it trying to protect it self?
I've tried a lot of things but it runs perfect in cooler or cold weather as this morning.

Detenator
Posts: 21
Joined: Tue Jun 05, 2012 11:32 pm
Location: Bend, Oregon
Motorcycle: 1986 GL1200 Interstate
1998 Shadow ACE VT750 CDII
2006 CRF250X
1991 EZ90 Cub
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Re: bike not running right, so fustrated!!!

Postby Detenator » Mon Mar 25, 2013 12:27 pm

Sounds like not only the carbs ned to be sync'd but you may have pulse generators that are going bad. They tend to fail when the bike is hot or in warm weather. This site has a lot of posts related to pulse gens. They are a common issue with these models of wings. Since you are new I would check out post about voltage regs, stator wire fix, pulse gens and carb sync. These are 4 very common issues for these bikes.

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virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: bike not running right, so fustrated!!!

Postby virgilmobile » Mon Mar 25, 2013 4:11 pm

From your first comment....it could be fuel starved.....
The fuel pump is a pulse type and only operates when there is spark and subject to stopping at any given moment due to the rubber bumper inside coming apart in pieces.
You can however unplug it and apply 12 volts directly to it for testing.
Unhook the fuel line on the carb and get it to discharge in a can.
Apply power to the appropriate wire and verify there is in fact enough fuel provided by the pump(plugged filter).
It should pulse about 3-4 times a second with a open discharge and slow to a stop as the pressure rises(plugging the hose).
If you power the pump directly it should pulse and then slow to a stop as the carbs get full.With empty carbs,this takes 7-15 seconds.While idling the pump will pulse once every 15-20 seconds or so.
You can also "pump it up" and then open the drain screw on each carb to verify it is getting gas.About 1/2 shot glass full in each.
You can also see if there is contaminates in the carb gas,like water....
The pulse coils can be tested with this method.... viewtopic.php?f=5&t=11800

However you sound like the bike didn't completely die(no spark) it died OFF(fuel problem)

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virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: bike not running right, so fustrated!!!

Postby virgilmobile » Mon Mar 25, 2013 4:18 pm

Oh,by the way.....there's no reason you can't sync the carbs yourself....
Plenty of cheap ways the DIY guy can do it just as good as the master mechanic with the fancy dancy tools.....I got my stuff at Home Depot and Wal Mart.
It would pull your shoulders loose from idle to red line.

Note: I only ran it to the red line in the first three gears before I exceeded the speed limit....... a bunch :mrgreen:
Sheesh...I had 2 more to go through too....

Here's a bit of info on the pump too...viewtopic.php?f=12&t=8642

mwparson
Posts: 2
Joined: Sun Sep 04, 2011 2:33 pm
Location: lovington new mexico
Motorcycle: 1987 gl 1200 i

Re: bike not running right, so fustrated!!!

Postby mwparson » Tue Mar 26, 2013 8:04 am

ok, so how do i sync the carbs if i cant get the bike to idle? it dies if i dont give it a full throttle? I am sure i cna sync them myself after reading some tof the how to's on here.

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virgilmobile
Posts: 7660
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: bike not running right, so fustrated!!!

Postby virgilmobile » Tue Mar 26, 2013 8:12 am

You can't.you need to resolve the first issue.
As a final step I indicated that you can DIY without taking it to a shop.
Even if it idles badly,rattling,etc then sync the carbs.




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