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Leaky Carburetor Question

  • Thread starter Thread starter devauxr
  • Start date Start date
D

devauxr

Guest
Hello all, I have a 1980 GS850, I recently rebuilt the carburetor's because the carburetor on my number 2 cylinder was leaking into the air box. I got the rebuild kits and on the advice of my brother of whom works with small engine's I only rebuilt the bottom halfs. To me it seems like some sort of float issue but as i'm not really a carb guy i seek wisdom from the knowledgable!

Thanks for any thoughts on the subject.
 
Petcock could be leaking down the vacuum line and into the engine - it connects to #2. If the petcock is ok, you need to go deeper into the carbs. There is a rebuild series on the GSR homepage. Spraying out the floatbowls is not generally not good enough.

Good luck.
 
my first suspect would be the fuel tap leak, so test that first

if thats all right, then the fault is most likely at the float valve (either the oring or the valve needle/seat)
 
Thanks guys, i just went and checked and it's pouring out. With what you guys said, some stuff from other threads, and the fact that i already replaced the needle and o ring i'm going to try the petcock! I will try and keep you guys posted
 
mosst people find it best to just replace the tap, as re-build kits are not that good
 
Greetings and Salutations!

Greetings and Salutations!

Hi Mr. devauxr,

You've got quite a nice bike there, but I may be a little partial. :)

Please click here to receive your mega-welcome, chock full of suggestions and links to vendors and other information. Then feel free to visit my little BikeCliff website for lots of GS850G lovin'. There I've been collecting the wisdom of this generous community, both to share and to make it easier for me to find when I need it. :rolleyes:

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff
 
Be aware, you have 2 problems. The petcock & the needle & seat must both be leaking. If either one is working properly, it shouldn't be leaking.
 
I have a petcock coming from a friend who luckily has an extra, but i also have a rebuild kit coming as cheap insurance because i'm not sure of the condition of his either. I took mine apart and there was a visible tear in the diaphragm...frankly it kinda fell apart in my hand. The needle and seat are the next on my agenda.
 
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