Left side puking fuel out exhaust

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Posts: 19
Joined: Tue Nov 12, 2013 11:55 am
Location: Kelso, WA
Motorcycle: 1977 GL1000 1984 1200 interstate 1989 gl1500

Left side puking fuel out exhaust

Post by twofest5 » Sun Nov 15, 2015 5:04 pm

I just rebuilt my carbs and the rt side is perfect. The left was pushing to much fuel out so I adjusted the floats. Stopped puking fuel out the exhaust but the #2 cylinder stayed cold and it smoked so too much fuel on that cylinder because the plug was soaked. I readjust that float and now it pukes fuel from the exhaust again. ... puddles on the ground. When I Rev smoke goes away and it smoothes out. At 4000 to 7000 rpm. I'm at my wits end here.

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Fred Camper
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Location: Metro Detroit, MI
Motorcycle: 1977 GL1000, 1976 LTD GL1000

Re: Left side puking fuel out exhaust

Post by Fred Camper » Sun Nov 15, 2015 7:59 pm

Need more details on the carb rebuild. Did you follow Mike Nixon's booklet or Randakks Video. Even sone Honda mechanic cannot not all get it right. And what did you use for a kit. There are big difference in kits. Pistol Pete is an excellent business for carb rebuilding.

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Location: North Carolina
Motorcycle: 77 GL1000
76 CB400F

Re: Left side puking fuel out exhaust

Post by Ncscooter » Fri Nov 20, 2015 1:36 am

What Fred said, but I'll hazard a guess that you used aftermarket float valves. With the bike idling on the center stand, you may see gas leaking back into the plenum from the offending carb(s). Float height really needs to be set at the height the manual says in order for these bikes to run properly. This is assuming (!) your ignition has been gone through and is working properly.
Keep your expectations tiny and you won't end up so whiny.

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Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: Left side puking fuel out exhaust

Post by RBGERSON » Thu Nov 26, 2015 8:33 am

+1 set floats to spec..

+1 aftermarket needles are suspect..they leak..could be a dirty seat as well.


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Motorcycle: 1980 gl 1100 Std. Vetter

Re: Left side puking fuel out exhaust

Post by f1xrupr » Sun Nov 29, 2015 8:26 pm

A hole in the float can do that. Maybe if you pull the carbs again, you can remove the float and shake it-there shouldn't be anything inside.

My exercise bike is a goldwing.

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