gl1200 Too much gas


Information and questions on GL1200 Goldwings (1984-1987)
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virgilmobile
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gl1200 Too much gas

Postby virgilmobile » Wed Jul 13, 2011 10:28 pm



It's loading up.sooty plugs.New air filter,anal carb repair ,float level and sync.Rips your arms off when accelerating.
Let it idle and it will start popping in both exhausts after 15 seconds.It pops about every 5 or 6 seconds.Just a low foomp.cleans up accelerating ,then some popping when cruising at around 2500 rpm.

What I did...when popping at an idle I shut off the fuel..After about 25 seconds,the popping subsided and the rpm increased up slowly from 900 to 1300.
This indicated to me that the fuel level was too high in the bowl.Turned the fuel back on and it started all over again.
Yes,yes,yes,I really did check the float level.It's spot on,dead perfect.
My only thought is that the floats are needing replacement as they are absorbing fuel and sinking in the bowl.
I'm thinking about coating them with polyurethane first tho.
Anybody got any ideas?



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dingdong
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Re: gl1200 Too much gas

Postby dingdong » Thu Jul 14, 2011 8:22 am

That's strange. Popping is generally associated with a lean condition. Your diagnosis of the floats makes sense if you turn off the fuel and it clears up but....all of the floats bad at the same time??? Are all of the plugs fouling?
Tom

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User avatar
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: gl1200 Too much gas

Postby virgilmobile » Thu Jul 14, 2011 3:55 pm

Yes all plugs sooty.Yes all floats are the same age and composite.Yes,popping in the exhaust indicates a over rich mixture,the unburnt fumes are collecting in the exhaust and then igniting,sounding like a dud firecracker.It is not a loud pop,just a dull foomp noise.

User avatar
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: gl1200 Too much gas

Postby virgilmobile » Tue Jul 19, 2011 9:41 am

Update.Floats are OK and set at 7.5mm
What I found...The "choke"is a fuel enriching mechanism.It's a plunger on each carb that is lever operated.
Rust worms got to the shaft inside the plastic sleeves.I found that returning the lever to the "run" position would not completely release all the little plungers to the closed position.
It's like running with the choke on a little.
I'll know in a few days. Here's a pix.
Attachments

User avatar
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: gl1200 Too much gas

Postby virgilmobile » Fri Jul 22, 2011 1:18 pm

Yup,that was it.I verified that the levers now fully unload any pull on the enriching plungers.Not a bit of loading full range.Clean and quiet..except that darn fuel pump,tick tick tick.




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